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saveliy_v [14]
3 years ago
5

How many solutions are there to the equation below? 8(x-3) = 7x- 20

Mathematics
1 answer:
luda_lava [24]3 years ago
5 0

Answer:

x = 4 (ONE solution)

Step-by-step explanation:

This is a first order linear equation, so we can expect 1 solution.

Multiplying out the left side, we get:

8x - 24 = 7x - 20, which simplifies to:

x = 4 (ONE solution)

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The sum of two numbers is -17. Their difference is 41. Find the numbers
Alex787 [66]

Answer:

x = 12

y = -29

Step-by-step explanation:

Our given equations: x + y = -17 and x - y = 41

Solve for x and substitute.

x = -17 - y

(-17 - y) - y = 41

-17 - 2y = 41

2y = -58

y = -29

Solve for x using y

x + (-29) = -17

x = 12

3 0
2 years ago
Lila is building a slide for her kids. The ladder is 3 meters tall and the slide is 5 meters long. What is the distance between
lisov135 [29]

Answer:

Step-by-step explanation: For a problem like this, it’s best to use Pythagorean Theorem which is a^2+b^2=c^2 .

In this problem they gave us a and c already so we are trying to find b.

3^2+?=5^2

9+?=25

25-9=16

Find the square root of 16 which is 4

Answer: The distance between the ladder and the slide is 4 meters

7 0
3 years ago
Harder questions.<br><br><br>Will give, Branliest.​
garri49 [273]

Answer:

425p + 100

Step-by-step explanation:

only answer that makes sense

7 0
2 years ago
Zoey can tile 1 1/4 square yards in 1/3 hour. What is her unit rate?
alukav5142 [94]
We know that Zoey can tile 1.25 square yards in 20 minutes (which is 1/3 of an hour) so we wanna see how much she can tile in an hour. Multiply 1.25 by 3.

1.25•3= 3.75 or 3 3/4
5 0
3 years ago
4 points: A,B,C and D are marked in order on a line such that AB:AC = 3:5 and BD:CD= 7:2. If CD is 10cm long, find the length of
Jlenok [28]
<span><span>ab:ac=3:5
bd:cd=7:2
if cd is 5 cm then cd=2:5 then ab=3:x

2:5=3:x
15=2x
x=15/2
x=7.5 cm</span><span>
Happy studying! ^_^</span></span>
4 0
3 years ago
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