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Burka [1]
3 years ago
6

Mark as brainlest! Write an equation for each problem. Then solve. If necessary, round your answers to the nearest hundredth.

Mathematics
2 answers:
Margaret [11]3 years ago
6 0
The answer for A. 124.50$
30% * 415= 124.50
The answer for B. 177$
124/.7=177$
I believe this is correct hope it helps

MatroZZZ [7]3 years ago
5 0

Answer:

a.$138

b.$197

Step-by-step explanation:

(/=division)

a.415/30=138

b.138/7=197

Hope I helped :D

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Find the average rate of change between f(-7) and f(-1) in the function f(x)=x^2+2x -8
Viktor [21]

Solve the equation by replacing x with -7 and then -1.

Then subtract the two to find the difference and divide that by the difference between -7 and -1.

f(-7) = -7^2 + 2(-7) -8 = 49 -14 -8 = 27

f(-1) = -1^2 + 2(-1) -8 = 1 -2 - 8 = -9

Difference between 27 and -9 = -36

Difference between -1 and -7 = -6

Rate of change = -36 /-6 = 6

3 0
3 years ago
B is the midpoint of AC. AB = 5x-7, BC = 3x - 5. Find the value of x.<br><br> А<br><br> B<br><br> C
NemiM [27]

Answer:

the value of x is 1......

as we know B is the midpoint....

then,

5x-7=3x-5

5x-3x=-5+7

2x=2

x=2/2

x=1

8 0
2 years ago
Urgent help! 40 points!
AURORKA [14]
Short Answer: 150

Remark
You have to use two facts.
1. The central angle = 2 * the angle at B
2. The central angle = the arc angle.

Given
angle at B = 75 degrees.

Calculate the central angle
Central angle = 2 * angle at B
Central angle = 2 * 75
Central angle = 150

Conclusion
The arc angle = Central angle
The arc angle = 150 degrees.
4 0
3 years ago
Read 2 more answers
HELPPP MEE PLEASEEE I DONT WANNA FAIL SUMMER SCHOOL NO FILES OR LINKS WOULD BE DEEPLY APPRECIATED
scoray [572]

Answer:

1) 1/4

2) 1 1/2

3) 9/5

4) 4 pounds

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
how would you estimate the sum? just like estimate the fractions and then get your estimated answer? Q: 2 1/6 + 3 6/11
denis-greek [22]
I think estimation is terrible. If u want to truly solve it, you just need to get a common denominator on each of the fractions. that means the bottom half of both fractions must be the same in addition or subtraction. so here, the common denominator would be 66. What times 6 = 66? 11. So 1*11/6*11 = 11/66. Then what times 11 = 66? 6. So 6*6/6*11. Your new problem is 2 11/66 + 3 36/66. Now you can just add it up, but the denominators will always stay the same, 66. Your answer would be 5 47/66
4 0
3 years ago
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