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ehidna [41]
3 years ago
13

What is the solution to the system of equations? Use the substitution method.

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0
{ y = 3 x - 4
  9x -3y = 14

Subsititute y = 3x-4 :

[ 9 x - 3 ( 3 x-14 )=14]

Refine:

9 x  - 3 ( 3 x - 4 ) = 14

- 2 = 0

is false , therefore the system of equations has no solution

Answer A

hope this helps! 
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Sergio039 [100]

Well, if each cookie contains 10g of fat, then...

4 cookies = 4*10 = 40g fat

7 cookies = 7*10 = 70g fat

I can only eat 4 to 7 cookies. So that means I had between 40 and 70 grams of fat.

Answer: a. Between 40 and 70 grams.

6 0
3 years ago
Fred used a number line to find the value of (-3)+(-5). Which of these number lines did he use?
Leokris [45]

Answer is in the file below

tinyurl.com/wpazsebu

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3 years ago
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Find the total surface area of this cone.<br> leave your answer in terms of pi<br> R=3<br> L=4
Yuliya22 [10]

Answer:

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22/7 x 3 (3+4)

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hence,

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8 0
2 years ago
A family is trying to pick from different shades of paint for their living room. They have narrowed it down to 10 colors: 3 diff
NeTakaya

Answer:

30%

Step-by-step explanation:

A family is trying to pick from different shades of paint for their living room. They have narrowed it down to 10 colors: 3 different blues and 7 different greens. The family decides to just randomly select a color from these. What is the probability they will pick a shade of blue? Choose the answer in percent form. Question 3 options: 50% 100% 70% 30%

First, we need to convert the probability of picking a blue shade into a fraction.

= 3/10

Since this is by 10, we need to times 0.3 (numerator) by 10 (the number of outcomes) Whatever you do to the numerator, you do to the denominator. This means that you also times 10 by 10

This gives you 30/100

Since a percentage is out of 100, you don't need to change anything, just take away the 100 and put a percentage sign.

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5 0
3 years ago
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Which value of x is a solution to x2<br> = 16?
Helga [31]

Answer:

8

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if we take the 2 that is in the R.H.S and put it in L.H.S

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8 0
3 years ago
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