- 5x + 2y = 9
y = 7x

Answers

Answer 1

Answer:

x = 1

Explanation:

- 5x + 2y = 9

y = 7xInsert 7x For 'y'

- 5x + 2(7x) = 9

Remove Parenthesis

-5x + 2 · 7x = 9

Multiply: 2 · 7 = 14

-5x + 14x = 9

Add: -5x + 14x = 9x

9x = 9

Divide Both Sides By 9

9x ÷ 9 = 9 ÷ 9

x = 1

Related Questions

A square has side length represented by X +4 inches write an expression to represent the area. Express your answer as a trinomial.

Answers

Answer:

[tex]A=(x^2+16+8x)\ \text{inches}^2[/tex]

Step-by-step explanation:

Given that,

The side length of a square, l = (x+4) inches

We need to find an expression to represent the area of the square.

The area of a square is given by :

[tex]A=\text{side}^2[/tex]

So,

[tex]A=(x+4)^2\\\\A=(x^2+16+8x)\ \text{inches}^2[/tex]

So, the area of the square is [tex](x^2+16+8x)\ \text{inches}^2[/tex].

Cual es el resultado de de esta ecuacion con valor obsoluto

| x + 1 | = | x - 5 |

Answers

Answer:

Well the absolute vaule will allways be postive. Therefore the answer being 2.  I Think.  

Step-by-step explanation:

i need help please help

Answers

Answer:

x=7

Step-by-step explanation:

5x-6=3x+8

subtract 3x from both sides

2x-6=8

add 6 to both sides

2x=14

divide both sides by 2

x=7

whats the line in fully simplified slope form pls help me.

Answers

Answer:

y =  -5/6x - 7

Step-by-step explanation:

The answer is y=-5/6x-7

!!!!!!!!!I AM CRYINGGGG!!!!!! PLZZZZ
PLEASEE HELP ME!!! *SEE Image!! Even is it's just 1 question but please!!! (#2 I really need!)!!!!!!

Answers

Answer:

-x^2-2x-3

Step-by-step explanation:

Question 1: Just substitute in the values of f(x) and g(x) and simplify!

f(x) - g(x) = 4x^2-5x+3-(5x^2-3x+6)f(x)-g(x) = 4x^2-5x+3-5x^2+3x-6f(x)-g(x) = -x^2-2x-3

Tell me if this helps, and if you still need number 2 or if you can do it by yourself! (Hint: substituting also plays a role in question number 2.)

Hope this helps!!

Simplify this radical expression → 3√24​

Answers

Answer:

[tex]\\\sqrt[1]{8}[/tex][tex]\sqrt[1]{8}[/tex]

Step-by-step explanation:

Solve 8x+2<12 please

Answers

Just use the Photomath

Please answer, I’ve been stuck on this the whole day, so basically I only need the four digit code. You can read the instructions on the paper. Thank you so much if you decide to answer ❤️.

Answers

I got 6103 or BEHI for the answer

plz, help I will give you the brainiest How likely is it to get a red card? A heart? A red or black card? A 2 of Hearts? Use the Probability Scale

Answers

Answer:

[tex]\frac{26}{52}[/tex], [tex]\frac{13}{52}[/tex], [tex]\frac{52}{52}[/tex], [tex]\frac{1}{52}[/tex]

Step-by-step explanation:

In a deck of playing cards there are 52 cards total.

13 clubs

13 hearts

13 spades

13 diamonds

half are red and half are black

all of the cards are red or black

plz mark me brainliest ;)

There were 54 runners to start a race. In the first half of the race, 1/3 of them dropped out. In the second half of the race, 5/6 of the remaining runners dropped out. How many runners finished the race?

Answers

Answer:

6 runners finished the race

Step-by-step explanation:

Total number of runners = 54

In the first half of the race, 1/3 of them dropped out

= 1/3 of 54

= 1/3 * 54

= 54/3

= 18 runners

Runners remaining after first half = total runners - dropped out runners at first half

= 54 - 18

= 36 runners

In the second half of the race, 5/6 of the remaining runners dropped out

= 5/6 * 36

= (5*36)/6

= 180/6

= 30 runners

Runners remaining after second half = runners remaining after first half - dropped out runners at second half

=36 - 30

= 6 runners

Therefore, 6 runners finished the race

2.A filled provides grazing for sheep for 8 days. How many days grazing would it provide for 24 sheep

Answers

Given:

Consider the complete question is "A field provides grazing for 18 sheep for 8 days. How many days grazing would it provide for 24 sheep?".

To find:

The number of days the field provides grazing for 24 sheep.

Solution:

We have,

If number of sheep = 18, then, number of days = 8.

If number of sheep = 24, then, number of days = x.

Now, the products of number of sheep and number of days are equal because they represent the total work done.

[tex]18\times 8=24\times x[/tex]

[tex]\dfrac{18\times 8}{24}=x[/tex]

[tex]\dfrac{144}{24}=x[/tex]

[tex]6=x[/tex]

Therefore, the field provides grazing for 24 sheep for 6 days.

$1500 = $25x + $50
What is the x in this question?

Answers

Answer:

x= 58

Step-by-step explanation:

$1500 = $25x + $50

minus 50

1450 = 25x

divide by 25

58 = x

hope this helps!

Answer:

$58

Step-by-step explanation:

1,500-50=1450

1450/25=58

You are selling concessions at a local swim meet. Hot dogs are being sold for
$1.00 and soda is being sold for $0.50. At the end of the day you made $150.
Let x represent the number of hotdogs sold and y represent the number of
sodas sold. Write an equation that can be used to find the number of hotdogs
and sodas sold at the swim meet.

Answers

Answer:

150 = 0.50y + 1.00x

Step-by-step explanation:

Bills family is driving across the country on vacation . They plan to stop at historical sites in each state they drive through. The total mileage of the trip is 3,000 miles. They have driven 900 miles so far what percent of driving do they still have left?

Answers

Answer: Blll's family has 70% of driving left.

Step-by-step explanation:

The total mileage of the trip = 3,000 miles.

miles driven so far = 900miles

Miles of diatance left = 3000- 900=2100

Percentage of driving left =  Miles of diatance left / Total miles to cover x 100

=2100/3000 x 100

= 7/10  x100

70%

4x +40 = 80
Step by step how to solve?

Answers

Answer:

x=10

Let's solve your equation step-by-step:

4x+40=80

Step 1: Subtract 40 from both sides

4x+40−40=80−40

4x=40

Step 2: Divide both sides by 4

4x/4=40/4

Answer:

x=10

Answer:

collect like terms

4x=80 - 40

4x= 40

divide both sides by 4

4x/4÷ 40/4

x = 10

Step-by-step explanation:

you're welcome

Solve this and whoever is right I'll mark if I can remeber

Answers

Answer:

14

Step-by-step explanation:

Answer:

14m squared

Step-by-step explanation:

2.5×2=5

5÷2=2.5

2.5 is the area for each triangle and there are four triangles altogether so

2.5×4=10

to find the square do 2×2=4

so 4m+10m=14m

The formula for converting degrees Fahrenheit (F) to degrees Celsius (C) is c= 5/9 (f-32) Find C for F = 59

Answers

Answer:

(59°F − 32) × 5/9 = 15°C

Step-by-step explanation:

Simply follow the equation and you will get your answer.

It’s 15 degrees Celsius
5/9 (59 - 32) = 15

Which of the division expressions below has a quotient that is greater than 15? Select all
that apply.
A) 345 : 15
B) 196 : 14
C) 212 : 16
D) 455 = 25
E) 221 : 13

Answers

Answer:

The answer is D

Step-by-step explanation:

because if you do the methoes method you know that it rules out 1 and 2 and 3 after you do that its just between C and D, for the caunususicon it has to be D, that is why i think its D. hope this helps

Solve.
952448 / 112 =

Answers

Answer:

10

Step-by-step explanation:

yup that's all have sorry

which point on this number line best represents square route of 10

(tap the whole photo the see the equation)

Answers

Answer:

the answer is B

Step-by-step explanation:

since 10 isn't a perfect square

greatest integer of x < -3

Answers

Answer:

-4

Step-by-step explanation:

Here, we want to get the greatest integer less than -3

The integer less than -3 that is the greatest is -4

It is the internet directly after it to the left of the number line

I needdd help PLEASEEE!!!! Which transformation would take Figure A to Figure B?

Answers

Answer:

a reflection over the line y= -x

9.) Water covers about 361,736,000, or about 70.8% of Earth's surface. What is the approximate surface area of Earth?​

Answers

Answer: 511,000,000 km^2

Step-by-step explanation: divide 361,736,000 by .708 looks like  

361,736,000///.708  Then you get your answer!

According to the property a/b = a/b which choice is equivalent to the quotient below? 30/5

Answers

Answer:

Answer is

Step-by-step explanation:

D

Lala!smzl!smzkaka

A sub shop sold sandwiches that were one-half of a foot long. If you were to cut the sandwich into 9 equal pieces, what fraction of a foot would each piece be?

Answers

The answer would be 1/18.

Answer:

[tex]\frac{1}{18}[/tex]

Step-by-step explanation:

[tex]\frac{1}{2} / \frac{9}{1} = \frac{1}{2} (\frac{1}{9} ) = \frac{1}{18}[/tex]

Plz help I will give brainliest

Answers

Answer:

the last one

Step-by-step explanation:

a square's sides should be the same angle

Answer:

i believe its the last one but im not 100% sure

Step-by-step explanation:

cubic feet= 1 cubic yard

Answers

Answer:

(1 yard) 3 = 1 3 yard*yard*yard = 1 yard*yard*yard = 1 cubic yard. Since 1 yard = 3 feet, we have.

1 cubic yard = (1 yard) 3 = (3 feet) 3 = 33 feet*feet*feet = 27 cubic feet.

Step-by-step explanation:

A project manager has ordered 252 pallets of concrete blocks for a construction project. Casone's trucks can each carry 14 pallets of blocks at a time. The project manager used partial quotients to find the number of delivery trucks to expect. His work is shown at the right. Is his solution correct? Explain

Answers

Answer:

18 trucks of delivery

Step-by-step explanation:

Total pallets of concrete blocks ordered = 252 pallets

If each truck can carry 14pallets, then;

1 truck = 14pallets

To determine the number of delivery truck 252pallets can carry, we can express this as:

x truck = 252pallets

Divide both expressions

1/x = 14/252

Cross multiply

14x = 1×252

14x = 252

x = 252/14

x = 18

Hence the manger should expect 1 18 trucks of delivery

Chris is 6 feet tall. To find the height of a tree, he measures his shadow and the tree's
shadow. The measurements of the shadows respectively are 8 feet and 28 feet. Find the
height, h, of the tree

Answers

Answer:

click the the photo to see better

Step-by-step explanation:

Surface area of a cushion

Answers

Answer:

need measurments

Step-by-step explanation:

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