What is the result of adding these two equations?

What Is The Result Of Adding These Two Equations?

Answers

Answer 1

Answer:

-18y-1

Step-by-step explanation:

algebra


Related Questions

20 POINTS AND BRAINLIEST

Answers

Answer:

1. 234.57

2.150.79

3. too lazy... lol sorry

Step-by-step explanation:

The cost of metal is proportional to the weight of the metal. Martin buys 12 pounds of metal for $33.00. Create an equation that can be used to determine the cost, in dollars, c, for m pounds of metal.​

Answers

Answer: 2.75m = c

Step-by-step explanation:

First we need to find the unit price

33 / 12: 2.75$ per pound

2.75m = c

We can test if this equation works

2.75(12) = c

33 = c

Which is correct

Divide.Enter the quotient in the simplest form.

7/10 divided by 4/5

Please hurry

Answers

I think it’s .22 I’m not sure hope this helps :)

A teacher initially plans to take an SRS of size 50 from his large high school and calculate the sample mean x bar of student GPAs. Later, the teacher decides to increase the sample size so that the standard deviation of the sampling distribution of x bar will be half as big as when using a sample size of 50. What sample size should the teacher use?
57
100
150
200
354​

Answers

Answer:

should be 200 because I think you quadrupole it and 50 x 4 =200

Step-by-step explanation:

Answer:

The answer is 200. 50 * 4 = 200.

3. In ΔABC, AB = 5 inches and BC = 3 inches. Which of the choices represents all possible values for AC, in inches?

Answers

Answer:

2< AC<8

Step-by-step explanation:

For a triangle to exits sum of two sides must always be greater than the the third side

⇒ AC<  AB+ BC =5+3=8 in

⇒AC<8 in

Also, the  difference of the two sides must be smaller than the length of third side

⇒ AC> | AB-BC| = |5-3| =2

AC> 2 in

therefore,  we can say  2< AC<8. Hence, AC can takes 3,4,5,6 values

Nico gives himself $90 a month to spend on fast food. He spends
$30 a week. The graph represents the amount of money Nico
has left after each week.

Answers

well if he spends $30 a week the the money should last about 3 weeks. so there wold be 3 weeks worth of money each month. so you can assume that he uses $1080 a year. and he buys fast food for 36 weeks.

I need help with some math?????????​

Answers

-14

is the first one, remember 1- (-15) is like 1-15 but the you put the - on the14 so you get-14, hope this helped

Ruby had 30 dollars to spend on 3 gifts. She spent 9 7 10 dollars on gift A and 5 2 5 dollars on gift B. How much money did she have left for gift C?

Answers

Answer:

$14 9/10

Step-by-step explanation:

Ruby had 30 dollars to spend on 3 gifts. She spent 9 7 10 dollars on gift A and 5 2 5 dollars on gift B. How much money did she have left for gift C?

From the above question,

$30 = Gift A + Gift B + Gift C

She spent 9 7/ 10 dollars on gift A and 5 2/5 dollars on gift B.

$30 = $9 7/10 + $5 2/5 + Gift C

Gift C = $30 - ( $9 7/10 + $5 2/5)

Lowest Common Denominator = 10

Gift C = $30 - $14+(7 + 4/10)

Gift C = $30 - $14+(7 + 4/10)

Gift C = $30 - $14+(11/10)

$30 - $14+(1 1/10)

$30 - $15 1/10

Gift C = $14 9/10

Therefore, the amount of money she had left for gift C is $14 9/10

Given right triangle ABCABC with altitude \overline{BD} BD drawn to hypotenuse ACAC. If BC=10BC=10 and DC=5,DC=5, what is the length of \overline{AC}? AC ?

Answers

Answer: [tex]\overline{AC}=[/tex] 12.5

Step-by-step explanation: The triangle ABC and its altitude [tex]\overline{BD}[/tex] is represented in the figure below.

Altitude is a segment of line that link a vertex and the opposite side, forming a right angle.

So, because of [tex]\overline{BD}[/tex], now we have two similar triangles, which means that ratios of corresponding sides are equal:

[tex]\frac{\overline{BD}}{\overline{BC}} =\frac{\overline{AD}}{\overline{BD}}[/tex]

[tex]\overline{BD}^{2}=\overline{BC}.\overline{AD}[/tex] (1)

This is always true for a right triangle and a altitude drawn to the hypotenuse.

Triangle BDC is also right triangle. So, we can use Pythagorean theorem to determine the missing side.

[tex]\overline{BC}^{2}=\overline{CD}^{2}+\overline{BD}^{2}[/tex]

[tex]\overline{BD}^{2}=\overline{BC}^{2}-\overline{CD}^{2}[/tex] (2)

Substituting (2) into (1):

[tex]\overline{BC}^{2}-\overline{CD}^{2}=\overline{BC}.\overline{AD}[/tex]

We want to find f, so:

[tex]\overline{AD}=\frac{\overline{BC}^{2}-\overline{CD}^{2}}{\overline{BC}}[/tex]

[tex]f=\frac{10^{2}-5^{2}}{10}[/tex]

f = 7.5

The length of [tex]\overline{AC}[/tex] is

[tex]\overline{AC}=f+5[/tex]

[tex]\overline{AC}=7.5+5[/tex]

[tex]\overline{AC}=12.5[/tex]

The length of the hypotenuse of triangle ABC is 12.5 units.

Answer:

x = 20

Step-by-step explanation:

Solve the system of equations by the substitution method.
X + 8y = 21
3x + 5y = 6

Answers

Step-by-step explanation:

the first one if you are solving for x it will be x=21-8y

if you are solving for y it will be y =21/8 - x/8

the second one will be if you are solving for x  x = 2 -5y/3

solving for y is y=6/5-3x/5

please help
Which of these describes the equation 3x + 7y = 8?
Select each correct answer.
A function
B. linear
C. nonlinear
D. proportional
E.
When x is 0, y is
F. When y is 2, x is 2 or -2.

Answers

According to the linear function concept, the correct answer is:

B. linear

Additionally:

When x = 0, [tex]\frac{8}{7}[/tex].When y = 2, x = -2.

What is a linear function?

A linear function is modeled by:

[tex]y = mx + b[/tex]

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0.

In this problem, the function is:

[tex]3x + 7y = 8[/tex]

Placing into standard format:

[tex]7y = 8 - 3x[/tex]

[tex]y = \frac{8}{7} - \frac{3x}{7}[/tex]

Hence it is a linear function.

When x = 0:

[tex]y = \frac{8}{7} - \frac{3(0)}{7} = \frac{8}{7}[/tex]

When y = 2:

[tex]y = \frac{8}{7} - \frac{3x}{7}[/tex]

[tex]2 = \frac{8}{7} - \frac{3x}{7}[/tex]

[tex]8 - 3x = 14[/tex]

[tex]3x = -6[/tex]

[tex]x = -\frac{6}{3}[/tex]

[tex]x = -2[/tex]

You can learn more about linear functions at https://brainly.com/question/25898120

Based on the scatter plot which is the best prediction of the number of gallons of water used by this business when the cost of water is $180

Answers

Answer:

Step-by-step explanation:

10 5/12 - 7 7/12 plss​

Answers

your answer is: C 125/12

Answer:

The answer is 2 5/6

Step-by-step explanation:

10 5/12= 125/12

7 7/12= 91/12

125-91 is 34

34/12 = 2 10/12

simplify it

2 5/6

please, please help, if you could show work too that would be so appreciated <33

Answers

Answer:

go to calculator.net

Step-by-step explanation:

Answer:

60 degrees

Step-by-step explanation:

There is an alternate angle, which would make the other angle on the same horizontal line as x 120 degrees, thus leaving 60 degrees.

Help me please:( I need it

Answers

Answer:

y = 18

Step-by-step explanation:

30² = 24²  + y²

900 = 576 + y²

y = [tex]\sqrt{324}[/tex]

y = 18

Two coins are tossed and a number cube (dice) is rolled. How many outcomes are
possible?
A. 24
B. 18
C. 12
D. 10

Answers

Answer:

C

Step-by-step explanation:

I tried my best, The coin has 2 outcomes and the dice has 6 so 6 times 2 is 12

Heather invests $3572 in a retirement account with a fixed annual rate of 5% compounded 4 times per year what will the account balance be after 16 years

Answers

Answer:

$7910.3

Step-by-step explanation:

Given data

P=$3572

n=4

T=16 years

R= 5%

The compound interest is expressed as

A= P(1+r/n)^nt

Substitute

A=3572(1+0.05/4)^16*4

A=3572(1+0.0125)^64

A=3572(1.0125)^64

A=3572*2.21453241061

A=$7910.3

HELP ME PLEASE WITH ANY QUESTION

Answers

Answer:

1.) -9

2.) 1/3 or 0.3

5.) 4

6.) 2.9

Step-by-step explanation:

i will give brainliest
Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.

Answers

Answer:2/6 i might be wrong but whats the answer choices?

Step-by-step explanation:

Answer:

Step-by-step explanation:

You can see that (0,4) and (1,1) are points on the line. Use their coordinates to determine the slope of the line.

slope = (difference of y-coordinates)/(difference of x-coordinates)

= (1-4)/(1-0)

= -3

I REALLY need help! Solve the inequality. State the solution in inequality notation.
2(3x−4)+14>−2(−3x−5)+4x

Answers

Answer:

x<−1

Step-by-step explanation:

Answer:

x < -1

2(3x - 4) + 14 > -2(-3x - 5) + 4x

<=> 6x - 8 + 14 > 2(3x + 5) + 4x

<=> 6x + 6 > 6x + 10 + 4x

<=> 4x + 4 < 0

<=> 4x < -4

<=> x < -1

The perimeter of triangle ABC is 96. Find the value of x. 4x + 1 2x 3x + 2 perimeter of ABC = 96

Answers

Answer:

4.5is answer

Step-by-step explanation:

perimeter of ABC = 96

4x + 1 2x 3x + 2=96

21x=96

x=96/21=4.5

What is the slope of the line with the given equation: 2x + y = 5​

Answers

Answer:

Using the slope-intercept form, the slope is 2 .

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

PLEASE SOMEONE HELP WITH THIS AND EXPLAIN IT!

Answers

Answer: x= 11.15

Step-by-step explanation:

Explanation is in the photo attached

Divide. 0.996 ÷ 0.12

Answers

Answer:

8.3

Step-by-step explanation:

Answer:

- 0.996 - Percentage increase =

- 0.996 - (12% × - 0.996) =

- 0.996 - 12% × - 0.996 =

(1 - 12%) × - 0.996 =

(100% - 12%) × - 0.996 =

88% × - 0.996 =

88 ÷ 100 × - 0.996 =

88 × - 0.996 ÷ 100 =

- 87.648 ÷ 100 =

- 0.87648 ≈

- 0.88

Step-by-step explanation:

pls brainlsit

convert 2.5t into pounds

Answers

Answer:

5000 Pounds

Step-by-step explanation:

I'm pretty sure this is the answer if not I'm honestly sorry.

Answer:

5512 lbs

Step-by-step explanation:

Armando deposits $3,827 into a bank account paying 2.8% interest,
compounded monthly (12 times per year). How much money will he have in
his bank account after 16 years? PLEASE HELP!!

Answers

Answer:

$745,460.8

Step-by-step explanation:

2.8/100 × 3827 = $107.16

monthly = 1/12

[tex]p = \frac{100 \times i}{rt} = \frac{100 \times 107.16}{2.8 \times \frac{1}{12} } = \frac{10716}{0.23} \\ = 46591.3[/tex]

$46,591.3 in 1year

16 years; $46,591.3 × 16 = $745,460.8

If you deposit $6000 into an account paying 8% annual interest compounded monthly, how much money will be in the account after 7 years?

Answers

Answer:

$10278

Step-by-step explanation:

Given data

P= $6000

R= 8%

T= 7 years

The compound interest formula is

A=P(1+r)^t

substitute

A=6000(1+0.08)^7

A=6000(1.08)^7

A=6000*1.713

A=$10278

What is the equation of the additive relationship represented by this table?

Enter your answer by filling in the box using an integer.


x y
9 5
12 8

Answers

Answer:

-1

Step-by-step explanation: hope this helps

Which numbers go in the red and blue box to make the same sum(ADDING INTEGERS)!!

Answers

Answer:

positive 3 and 7 in the red box and negative 6 and 4 in the blue box hope that helps

the unit used to measure an angle is called what

Answers

Answer:

prokololoy

Step-by-step explanation:

mag aral ka kase wag puro ml

The unit used to measure an angle is called, degrees
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