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Drupady [299]
3 years ago
11

When solving a system by substitution, one should

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0
B, because to substitute for a variable you have to have an equation to substitute first.
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The average test score of RSM students in September increased by 10%. In October it increased by another 15%. By what percent di
Aneli [31]
The Average test score start = 100%

It increases by 10%: 

100% = 1
10% = 0.10

1 x 0.10 = 0.1
1 + 0.1 = 1.1

It increases by another 15%

1.1 x 0.15 = 0.165
1.1 + 0.165 = 1.265
Remember to move the place value digit to the right two spaces to make it a percentage

126.5% increase is your answer

hope this helps
3 0
3 years ago
Read 2 more answers
In the Sahara Desert one day it was 136°F. In the Gobi Desert a temperature of -50°F was recorded. What is the difference betwee
andriy [413]

Answer:

186 degrees fahrenheit or 85.56 degrees celcius

Step-by-step explanation:

136-(-50)=186

6 0
3 years ago
Please help one of my last questions.....
Shkiper50 [21]

Answer:

B and C

Step-by-step explanation:

Uses my  calculator and put the table in for worker be and thats how i found the slope was 12.5 . then i used to to figure out that when the hour got  to 10 worker B starts making more money.

8 0
3 years ago
a cake divided into 10 equal slices.kim ate 3/5 of 1/2 of cake. what part of the whole cake did kim ate? ​
joja [24]

Answer:

3/10 of the whole cake

Step-by-step explanation:

When you divide a cake in halve you get 5 pieces on each side, if Kim ate 3/5 of 1/2 of the cake, then she ate 3 pieces, so she ate 3/10 of the cake, and other way to figure this out is multiplying the two fractions, 3/5 x 1/2 = 3/10

8 0
3 years ago
How do I solve this equation?
Keith_Richards [23]

Answer:

y=\frac{7}{2}x+11

Step-by-step explanation:

To solve, we need to find the y-intercept (b). In order to find the y-intercept, we can plug in the slope and the (x,y) coordinate pair given to us into the equation to solve for the y-intercept:

y=mx+b

4=(-7/-2)*-2+b

4=14/-2+b

4=-7+b

Add 7 to both sides

b=11

Therefore the equation is:

y=\frac{7}{2}x+11 (note that the fraction is positive since the two negatives cancel out)

4 0
2 years ago
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