3 years ago

Need help for 18) 21) Solve each equation and check. Show all work please

Mathematics

1 answer:

Alexxandr [17]3 years ago

5 0

18) (10)7d/10=35(10)
7d/7=350/7
d=50
21) 3/4 w=27
(4/3)3/4 w=27(4/3)
w=36
Hope this helps!

You might be interested in

Write the Slope- Intercept equation of the line that passes through the given point and is perpendicular to the given line (0, -

damaskus [11]

Answer:

y+4=-3(x+0) or y=-3x-4

Step-by-step explanation:

so you have to make it in form y=mx+b

that would be y=1/3x-2/3

for a perpendicular line, you would need to find the opposite reciprocal of the slope

3/1 or 3 would be the reciprocal, so to make it opposite would be -3

So it would be y-y1 = m(x-x2)

fill it in with the coordinates (0,-4)

y+4=-3(x-0)

to get it to slope intercept form you have to simplify, and after that you get y=-3x-4

4 0

3 years ago

Mr. Alvarez has 36 kids in his 7th period class The ratio of boys to girls is 5:7. How many boys are there? How many girls are t

Eddi Din [679]

Answer: 15 boys

Explanation: ratio 5:7

5 + 7 = 12

Number of boys = 5/12 × 36

4 0

3 years ago

I have math homework but i dont understand how to do it plz help me

ivann1987 [24]

1) $5x+0.29=3.24
 \\ 5x=2.95
 \\ x=0.59
$
Each marker cost 59 cents

2) $7(x+3)=126
 \\ 7x+21=126
 \\ 7x=105
 \\ x=15$
The old Big Almond Bag weighed 15 ounces. The new Big Almond Bag weighs 18 ounces.

8 0

3 years ago

Read 2 more answers

If the function g(x) = f(x + 2), how can the graph of the function g(x) be obtained from the graph of f(x)?

Yakvenalex [24]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Alan needs to drive 400 miles to reach Madison. He is driving at a constant speed of 55 miles per hour. The function y = 400 − 5

harkovskaia [24]

At a constant speed Alan is traveling 7.27 repeating.

3 0

3 years ago