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3 years ago

Need whole page 20 points worth

Mathematics

1 answer:

Ket [755]3 years ago

7 0

Option b is the better deal

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12 less than 7 times a number x

erma4kov [3.2K]

The answer is 5x because when you do the math 12 subtracted by 7 equals 5 then you add the x at the end.

8 0

3 years ago

Given two complementary angles, 3x and (x - 2). Find the value of x.

ohaa [14]

Answer:

x = 23°

Step-by-step explanation:

Note: Complementary angles measure 90°

3x + (x - 2)° = 90°

=> 3x + x - 2° = 90°

=> 4x - 2° = 90°

Add the additive inverse of -2 to both sides of the equation

i.e 4x - 2° + 2° = 90° + 2°

=> 4x = 92°

Divide both sides of the equation by the coefficient of x which is 4

=> 4x/4 = 92°/4

x = 23°

6 0

3 years ago

A and b are odd numbers.

stepladder [879]

Answer:

2(3+7)=20 and 20 is a multiple of 4

Step-by-step explanation:

4 times 5 equals 20, which makes it a multiple of 4

3 and 7 are both odd, and added together get 10. Times that by 2 and you get 20

8 0

3 years ago

Read 2 more answers

Maria invests $6,154 in a savings

Anna [14]

Answer:

$13286.02

Step-by-step explanation:

100 + 8 = 108

108 / 100 = 1.08

6154 x $1.08^{10}$ = $13286.02

4 0

3 years ago

Read 2 more answers

Five classes collected money for a charity of their choice. The amounts of money collected by the boys and girls of each are sho

34kurt

The girls collected 8.5 pounds more than the boys in class 4

<h3>Complete question</h3>

Five classes collected money for a charity of their choice. The amounts of money collected by the boys and girls of each are shown in the chart below.

In Class 4, how much more money did the girls collect than the boys?

<h3>How to determine the difference in amounts?</h3>

From the attached chart, we have the following amount in class 4:

Girls = 12 pounds

Boys = 3.5 pounds

The difference is calculated as:

Difference = Girls - Boys

So, we have:

Difference = 12 pounds - 3.5 pounds

Evaluate

Difference = 8.5 pounds

Hence, the girls collected 8.5 pounds more than the boys in class 4