I need help here please

I Need Help Here Please

Answers

Answer 1

Answer:

Simultaneous equations

Step-by-step explanation:

4a + 7m = 17.75

2a + 5m = 10.75

Double the 2nd equation and then subtract the two equations to cancel the 4a out

Work with the 'm' terms and find the value of m

After finding the value of 'm', substitute it into one of the original equations (the ones given in the question) and solve to find the value of 'a'

Hope this helped


Related Questions

evaluate 3|-3|

a. -6
b. 6
c. 9
d. -9

Answers

Answer:is that 3i or what?

-

Step-by-step explanation

Answer:

It's answer is d) 9

.........

The price of a technology stock has risen to $9.66 today. Yesterday's price was $9.59. Find the percentage increase. Round your answer to the nearest tenth of a percent.

Answers

Answer:

% increase = 100 x [(new price) - (original price)] / (original price)] = 100 (9.67 - 9.56) / 9.56

% increase ≅ 1.2% (to the nearest tenth)

A board 180 cm long is cut into two pieces such that 3 times the length of the larger piece is 85 cm longer than 4 times the length of the smaller piece. How long are the two pieces of board?

Answers

Answer:

smaller piece is 65cm

larger piece is 115cm

Step-by-step explanation:

let 's' = smaller piece

let '180-s' = larger piece

3(180-s) = 85 + 4s

540 - 3s = 85 + 4s

540 = 85 + 7s

455 = 7s

s = 455/7 which is 65cm

larger piece = 180-65 or 115cm

Which of the following equations represents the graph of a line that is perpendicular to the graph of y = kx + b (where k and b are constants) and goes through the point (3, -4)?

Answers

Answer:

Step-by-step explanation:

When you ask "which of the following"

you must include the choices

Select the correct answer.
Tommy has a rectangular-shaped swimming pool. He wants to know the volume of water in the pool, but he is not sure what the width of the
pool is. He knows the relationship between the width and the length and height of the pool. He used this relationship to come up with the
following equation to find the volume of the pool when the width is w meters.
A. Z
B. X
C. Y
D. W

Answers

Answer:

it is x

Step-by-step explanation:

The volume of a shape is the amount of space in it.

The graph that satisfies the above condition is the (b) graph X:

The volume of a rectangular-shaped swimming pool is

[tex]\mathbf{V=l \times w \times h}[/tex]

Where:

[tex]\mathbf{l,w,h \ge 0}[/tex] ---all the dimensions are greater than 0

[tex]\mathbf{l,w,h \ge 0}[/tex] means that:

The graph of V must have three x interceptsThe graph of V must not pass through the origin (0,0)

From the given graphs, the graph that satisfies the above condition is the graph X:

This is so because it crosses the x-axis three times, and it does not pass through the origin

Read more about volumes at:

https://brainly.com/question/13338592

You are playing a game with your friend to see who can make the most baskets from the free-throw line. Each of you has 5 shots at the basket. How many ways are there for you to make exactly 4 shots?

A) 4

B) 5

C) 10

D) 6

Answers

Answer:

B) 5

Step-by-step explanation:

The given parameters are;

The number of shots at the basket = 5 shots

The number of ways to make exactly 4 shots is given by combination as follows;

The number of ways to shoot exactly 4 shots = ₅C₄ = 5!/(4!×(5 - 4)!) = 5

The number of ways to shoot exactly 4 shots = 5 ways






Help






Will




Give



Brainlist





:)))

Answers

B : 7.9......................

Answer:

7.9

Step-by-step explanation:

15 + 12 + 5 + 9 + 7 + 2 + 5

55

55 ÷ 7

[tex]\frac{55}{7}= 7\frac{6}{7}=7.85714285714[/tex]

7.85714285714 rounds to 7.9


One evening the Scotts went to the Chalet Restaurant for
dinner. The bill was $67.65. Mr. Scott paid with four $20 bills.
How much change should he have received?

Answers

Given:

Total bill = $67.65

Mr. Scott paid with four $20 bills.

To find:

The amount of change he have received.

Solution:

It is given that, Mr. Scott paid with four $20 bills. So, the total amount paid by him is:

[tex]\$20\times 4=\$80[/tex]

Total bill = $67.65

Now,

Amount of change = Total amount paid - Total bill

                               = $80 - $67.65

                               = $12.35

Therefore, he should have received $12.35.

the decimal expansion of the number 2 1 / 2​

Answers

Answer:

[tex]{ \tt{ = 2 \frac{1}{2} }} \\ \\ = \frac{5}{2} \\ \\ { \tt{ = 2.5}}[/tex]

Problem 3 : Using In the pattern in the image below , how many dots would be in Step 4

Answers

Answer: 13 dots

Step-by-step explanation:

You're basically adding 4 each time around, so number 1 is 1 dot, then number 2 is 5 dots because you added 4, number 3 is 9 dots because you added 4, etc.

Answer:

T4 = 13

Step-by-step explanation:

Using arithmetic progression

Tn = a + (n - 1)d

Where a - first term

n - n^th term

d - common difference

28 days = ? Weeks 339 days = ? Months 14 months = ? Days 8 weeks = ? Days 90 days = ? Months 3 minutes = ? Seconds 3days = ? Hours 48 days = ? Days 5 minutes = ? Seconds

Answers

Answer:

28 days = 4 weeks

339 days = 11 month

14 months = 420 days

8 weeks = 56 days

90 days = 3 months

3 minutes = 90 seconds

3 days = 72 hours

48 days = 48 days

5 minutes = 300 seconds

A = (1, 3, 5, 7, 9)
B = {2, 4, 6, 8, 10)
C = (1, 5, 6, 7, 9)
A U B=

Answers

Answer:  Choice C) integers from 1 to 10 inclusive

==============================================================

Explanation:

The "U" means "set union". We form a larger set that contains any number that's in set A, set B, or both.

So,

A U B = {stuff from set A,  stuff from set B}

A U B = {1,3,5,7,9,       2,4,6,8,10}

A U B = {1,2,3,4,5,6,7,8,9,10}

A U B = set of integers from 1 and 10 inclusive

That makes choice C the final answer.

Choice B is very close to it, but that verbally describes the set {2,3,4,5,6,7,8,9} which leaves out 1 and 10. The "inclusive" makes sure to involve the endpoints 1 and 10, as well as everything in between.

Please someone help me with this!

Answers

The sum of two numbers and their difference is 30.

7
6. Which expressions are equivalent to (7 -x)+ 4?
as
he
s
A 7x + 4
B. 4 + (7.)
C. (x + 4
D. 4 (7-X)

Answers

Option c is correct formula

What is the first term of the series?
a1 =

Answer each question about the following
geometric series
10
k-1
S10 = 32
k-1
How many terms are in the series?
COMPLETE
Σ3(2): -
What is the last term of the series?
a1 =
1
DONE
2
9
10
COMPLETE

Answers

Answer:

Below.

Step-by-step explanation:

The first term (where k = 1)

= 3(2)^1-1

= 3*1

= 3,

The last term ( k = 10)

= 3(2)^(10-1)

= 3(2)^9

= 3* 512

= 1536.

Answer:

3

1536

A

Step-by-step explanation:

Will give BRAINLIEST to correct answer.

Triangles ABC and DEF are similar triangles. Solve. Round to the nearest tenth.

Find the height of triangle DEF.

Answers

Answer:

3.3 m

Step-by-step explanation:

the height = 2/3 × 5 = 10/3 = 3.3 m

Please delete my answer. I made a mistake

(2x-y)2-(y+2)2:::::::::::::::

Answers

Answer:

(2x - y )2 - (y + 2)2 = 4 (x - y - 1)

Step-by-step explanation:

[tex](2x -y) 2 - ( y + 2 ) 2 = (4x -2y) -(2y + 4) \\\\[/tex]

                             [tex]= 4x - 2y -2y - 4\\\\=4x - 4y - 4\\\\=4(x-y-1)[/tex]

Help pls I give brainlest

Answers

Answer:

y = 1/2x - 3

Step-by-step explanation:

The line intercepts with the y-axis at -3 and its pattern is going right two and up one.

He surface area of a piece of paper is 692 cm2. Use the fact that 10 mm = 1 cm to convert this area to mm2. Give your answer as a number. Do not type the units in the space below.

Answers

Answer:

Surface area = 6.92 cm²

Step-by-step explanation:

Given the following data;

Surface area = 692 cm²

To convert the area in cm² to mm²;

Conversion:

10 mm to cm = 10/10 = 1 cm

1 mm² to cm² = 1/100 = 0.01 cm²

692 mm² to cm² = 692 * 0.01 = 6.92 cm²

Therefore;

692 mm² = 6.92 cm²

In conclusion, the surface area of the piece of paper is 6.92 square centimeters.

if( 1 ,2 )and( 3 - 2)
are the two end point of a diameter of circle find the coordinates of the centre​

Answers

Answer:

(2,0)

x-value: [1+3]/2 = 4/2 = 2

y-value: [2+-2]/2 = 0/2 = 0

Step-by-step explanation:

rewrite each pair of fractions using the least common denominator 5/6 2/5

Answers

Answer:

25/30 and 12/30

Step-by-step explanation:

6 and 5 have a least common multiple of 30

6*5 = 30

5/6 * 5/5 = 25/30

2/5 *6/6 = 12/30

Answer:

10/12       4/10

Step-by-step explanation:

If p + q= 12 and pq=22, then find p2+q2.


p2 = p square

q2 = q square

(Don't get confused)

Answers

p+q = 12

Squaring both the sides

(p+q)^2 = 12^2

p2 + q2 + 2pq = 144

p2 + q2 + 2x 22 = 144

p2 + q2 = 144 - 44

p2 + q2 = 100

Answer:

q2=

Step-by-step explanation:

The formula for p^2+q^2p

2

+q

2

is

p^2+q^2 = (p+q)^2 -2pqp

2

+q

2

=(p+q)

2

−2pq


The product of a number x and four decreased
by twelve.
Which of the following is an expression for the
statement above

a/4x+12
b/4(x+12)
c/4(x-12)
d/4x-12​

Answers

Step-by-step explanation:

a. increased b. discreased c. increased d. decreased

Which table of ordered pairs represents a proportional relationship?
х
-2
4
-6
y
4
16
36
х
-4
-6
-8
y
-8
-12
-18
o
х
-3
-5
-7
y
5
3
1
O
х
-3
-6
-9
y
12
24
36

Answers

Answer:

x=-3×-5×-7

-3×-5=15

15×-7=-105

=-105


Peter was thinking of a number. Peter halves the number and gets an answer of 25.5. Form an
equation with x from the information.

Answers

Answer:

0.5x = 25.5

Step-by-step explanation:

Peter was thinking of a number x, then he halves it's

NEED HELLPPPPP !!!!

Answers

Answer:

x = 14

Step-by-step explanation:

Triagle GIA and Triangle GNT are congruent.

Determine whether the given triangles are congruent

Answers

Answer:

Yes they are congruent and it is explained below

Step-by-step explanation:

There are 5 postulates when testing for congruency and they are;

SSS, SAS, ASA, AAS and HL.

S represents side

A represents angle

H represents hypotenuse

L represents leg

Now, in this our question, we can see that the 3 angles and the three sides of both triangles are equal to each other.

Thus, we can make use of SSS postulate whereby we say the 3 sides of the first triangle are equal to the 3 sides of the second triangle.

Thus, they are congruent.

A triangle with the coordinates X(3, 2), Y(5, -1), and Z(-2,3) is reflected across both the x- and y-axes. The coordinates after both reflections are X'( ), Y'( ), and Z'( ).​

Answers

Answer:

X'(-3, -2), Y'(-5, 1), and Z'(2, -3)

Identify the least common multiple of:


(x + 1), (x - 1), & (x^2 - 1)

Answers

Given:

The expressions are [tex](x+1),\ (x-1)[/tex] and [tex](x^2-1)[/tex].

To find:

The least common multiple of given expressions.

Solution:

The expressions are [tex](x+1),\ (x-1)[/tex] and [tex](x^2-1)[/tex]. The factor forms of these expressions are:

[tex](x+1)=1\times (x+1)[/tex]

[tex](x-1)=1\times (x-1)[/tex]

[tex](x^2-1)=(x-1)(x+1)[/tex]                 [tex][\because a^2-b^2=(a-b)(a+b)][/tex]

The least common multiple is the product of all distinct factors with its highest degree. So,

[tex]L.C.M.=1\times (x+1)\times (x-1)[/tex]

[tex]L.C.M.=(x+1)(x-1)[/tex]

[tex]L.C.M.=x^2-1^2[/tex]                [tex][\because a^2-b^2=(a-b)(a+b)][/tex]

[tex]L.C.M.=x^2-1[/tex]

Therefore, the least common multiple of given expressions is [tex]x^2-1[/tex].

Find the missing value

Answers

Answer:

? = 24/23 or 1 1/23

Step-by-step explanation:

In order to do this you have to:

1) Isolate the variable

            -  you do this by dividing each side by factors that don't contain the variable

            - you divide because it is the opposite of multiplication

Hope this helps!

Other Questions
DJ Kenisha is making a playlist for a radio show; she is trying to decide what 6 songs to play and in what order they should be played. If she has her choices narrowed down to 5 reggae, 15 hip-hop, and 13 blues songs, and she wants to play an equal number of reggae, hip-hop, and blues songs, how many different playlists are possible? Express your answer in scientific notation rounding to the hundredths place. How did the Fante confederacy emerge? A line with a slope of 3 passesthrough the points (2, -1) and (4,5).Which of the following is not anequation of the line that passesthrough those points?A. y+1 = 3(x-2)B. y = 3x-11C. y = 3x-7D. y-5 = 3(x-4) In the following statement, what is the effect?Unemployment is one debilitating consequence of illiteracy.O a. unemploymentO b. illiteracy Make 'r' the subject of this formula: 3r - 5 = p What BEST describes these three molecules? Amber rode her bike around the park 4 times. It took her 9 minutes each time.How many minutes did she ride in all? Busco amigos o amigas :D is it true that the most reactive metals are quite plentiful in the Earth's crust? Read these excerpts from The Way to Rainy Mountain by N. Scott Momaday"Why are you following me? What do you want?" The manwas afraid. The thing standing before him had the feet of adeer, and its body was covered with feathers. The mananswered that the Kiowas were hungry. "Take me with you,"the voice said, and I will give you whatever you want."From that day Tai-me has belonged to the Kiowas.Once I went with my father and grandmother to see theTai-me bundle. It was suspended by means of a strip oftcking from the fork of a small ceremonial tree. I made anoffering of red cloth, and my grandmother prayed aloud.Which statement best compares the tones of the two passages?O A. The first passage tells the story of the Kiowa people to achieve aninstructional tone, but the second passage uses personalexperience to achieve a reflective tone.B. The first passage tells the story of the Kiowa people to achieve aninstructive tone, but the second passage teaches a lesson toachieve an enlightening tone.O C. The first passage teaches a lesson to achieve an enlighteningtone, but the second passage uses historical information toachieve an objective tone.O D. The first passage uses sensory-based language to achieve areflective tone, but the second passage uses factual descriptionsto achieve an informative tone. Ayala Architects incorporated as licensed architects on April 1, 2017. During the first month of the operation of the business, these events and transactions occurred: Apr. 1 Stockholders invested $18,270 cash in exchange for common stock of the corporation. 1 Hired a secretary-receptionist at a salary of $381 per week, payable monthly. 2 Paid office rent for the month $914. 3 Purchased architectural supplies on account from Burmingham Company $1,320. 10 Completed blueprints on a carport and billed client $1,929 for services. 11 Received $711 cash advance from M. Jason to design a new home. 20 Received $2,842 cash for services completed and delivered to S. Melvin. 30 Paid secretary-receptionist for the month $1,524. 30 Paid $305 to Burmingham Company for accounts payable due.Required:Journalize the transaction. please help me answer this just need u gais to help me The prices of property in big cities may deter people on low incomes from owning a house there What value of m makes the equation 8am/4a5=2a6 true? The volume of a piece of wood is 620cm3.Its density is 0.85g/cm3.Work out its mass can someone pls pls help me? who do you mean by statictics? and functions of statictics Which of the following diseases can be cured using antibiotics?A. AIDSB. DengueC. TyphoidD. Malaria Write a linear equation in standard form for the line that goes through(-14,-5) and (4,5).O A. y- 5 = (x-4)B. -5x+9y= 25C. -5x +9y= 1D. 5x-9y= 25