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Natalija [7]
3 years ago
14

La razon de 3 librasa $ 6.00​

Mathematics
1 answer:
andrew-mc [135]3 years ago
6 0

Answer:

I would love to help you so much but I don't understand

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I need these three solved. I have a lot of math to do. the directions say solve each system of equations using substitution. sho
alekssr [168]

Answer:

5.

x + 2(x + 1) = 8 --> x = 2

y = 2 + 1 = 3

7.

3(9 + 2y) + 5y = 20 --> y = -7/11

x = 9 + 2(-7/11) = 85/11

9.

3(-1 - 2y) + 5y = -1 --> y = -2

x = -1 - 2(-2) = 3


6 0
3 years ago
Kayla consumed 1800 calories on Monday. She consumed 500 more calories on Tuesday than she did on Monday. On Wednesday, she cons
Mrrafil [7]

Answer:  +200 calories/day

Step-by-step explanation:

6 0
3 years ago
Find the radius of a circle that has an area of 6.76 cm². Use it for pi.
Inessa05 [86]

Answer:

<h2>radius = 1.47 cm</h2>

Step-by-step explanation:

Area of a circle = πr²

where

r is the radius

From the question

Area = 6.76 cm²

To find the radius substitute the value of the area into the above formula and solve for the radius

That's

6.76 = \pi \:  {r}^{2}

Divide both sides by π

We have

{r}^{2}  =  \frac{6.76}{\pi}  \\ r =  \sqrt{ \frac{6.76}{\pi} }

r = 1.46689291

We have the final answer as

radius = 1.47 cm

Hope this helps you

8 0
3 years ago
Evaluate the function for f(3).<br> f(x) = -3x - 8
scoundrel [369]
If 3 is x that means y is -17 so that mean f=-17/3
8 0
3 years ago
WILL MARK BRAINLIEST PLEASE HELP ASAP!!!! Timothy bought 10 cookies for $5.00 Let x represent the number of cookies purchased, a
earnstyle [38]

The line should go from (0,0) to (7,3.5)

The equation is Y = X(0.5)

3 0
3 years ago
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