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Natalija [7]
3 years ago
12

Solve by substitution. 5x + 4y = -14 y = -7x - 15

Mathematics
1 answer:
ki77a [65]3 years ago
5 0

Answer:

(-2,-1)

Step-by-step explanation:

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2,412 ÷ 25.<br> pls show your work<br> 1,889 ÷ 36.<br> pls show your work
Goshia [24]

Answer:

96.48

52.472

Step-by-step explanation:

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3 years ago
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The high temperature on Friday was 8 degrees above zero. The low temperature was 3 degrees below zero. Which expression gives th
alexandr1967 [171]

Answer:

Option 2, (-3+8)/2

Step-by-step explanation:

Average: Sum of two numbers/ How many numbers

Sum: -3+8

Amount of Numbers: 2

(-3+8)/2

8 0
3 years ago
Simplify the answer as much as possible​
RSB [31]

Answer:

f(-5)=240

g(-7)=-33

Step-by-step explanation:

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

f(-5)= 3×(-5)^2 - 3×(-5) = -15^2 + 15= 225 + 15=240

2) g(x)=5x + 2

g(-7)= 5×(-7) + 2= -35+2=-33

6 0
3 years ago
PLEASE HELP!!! I've been really struggling with these. Can someone assist with this?
Archy [21]
When dealing with little odds you must know one part and the whole part. For number 1 a fraction , 7 is a part of a 11 which is the whole. For 2 a percent, 6% part and 100% whole, here you had to know that for 6% to exist there had to be a 100% . For 3 a ratio, the first number is part (2) and the second is whole (7). Look at pic for all work.

4 0
3 years ago
A grid shows the positions of a subway stop and your house. The subway stop is located at (–9, 7) and your house is located at (
miv72 [106K]
For this case, the first thing you should do is use the distance between points formula.
 We have then:
 d = root ((x2-x1) ^ 2 + (y2-y1) ^ 2)
 Substituting we have:
 d = root ((9 - (- 9)) ^ 2 + (-2-7) ^ 2)
 d = 20.1246118
 Rounding off we have:
 d = 20 units
 Answer:
 
The distance, to the nearest unit, between your house and the subway stop is:
 
B. 20
8 0
3 years ago
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