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3 years ago

Ok so math questions:

Mathematics

1 answer:

dolphi86 [110]3 years ago

6 0

Joe: 24
John: 2/3 of 24 is 16
Jessie: 24 + 16 = 40; 1/5 of 40 is 8
Jessie makes $8 an hour.

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Combine likes terms to create an equivalent expression 1/7 - 3(3/7h -2/7)

Anastasy [175]

$\frac{1}{7} -3(\frac{3}{7}h -\frac{2}{7}) = \frac{7-9h}{7}$

Solution:

Given expression is:

$\frac{1}{7} -3(\frac{3}{7}h -\frac{2}{7})$

We have to combine the like terms

From given expression,

$\frac{1}{7} -3(\frac{3}{7}h -\frac{2}{7})$

By distributive property,

The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

a(b + c) = ab + bc

Therefore,

Solve for brackets using distributive property

$\frac{1}{7} - (3 \times \frac{3}{7}h) + (3 \times \frac{2}{7})\\\\\frac{1}{7} - \frac{9h}{7} + \frac{6}{7}$

Add 1/7 and 6/7

$\frac{1}{7} + \frac{6}{7} -\frac{9h}{7}\\\\\frac{1+6}{7} -\frac{9h}{7}\\\\Simplify\\\\\frac{7}{7}-\frac{9h}{7}\\\\1-\frac{9h}{7}\\\\Simplify\\\\\frac{7-9h}{7}$

Thus the equivalent expression is found

5 0

2 years ago

If a watch cost 40 dollars and you must pay 6.5 sales tax how much will tax be

Serhud [2]

Answer:

$100

Step-by-step explanation:

thank me later

6 0

3 years ago

Read 2 more answers

Colton earns $7 per hour plus $1.50 for each pizza delivery. The expression 7h + 1.50d can be used to find the total earings aft

Rina8888 [55]

Since the expression 7h + 1.50d can be used to find the total earnings. We just need to substitute the given data to the expression to solve the problem.

7(15) + 1.50(8)
105 + 12 = 117

Colton's total earnings after working 15 hours and making 8 deliveries is 117 dollars.

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3 years ago

What is the product? Assume x > 0 (sqrt 3x + sqrt 5) (sqrt 15x + 2 sqrt 30)

CaHeK987 [17]

Answer:

B hope it helps

Step-by-step explanation:

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3 years ago

The following table shows the number of hours some students of a class listen to music each day:

artcher [175]

Answer: This may be late but the answer is C

Step-by-step explanation: You have to look at all your values and count up how many students can fit into each column of your histogram.

8 0

2 years ago