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s344n2d4d5 [400]
3 years ago
12

John can wash a car in 10 minutes. Brad can wash the same car in 8 minutes. How long will it take them if they work together to

wash a car?
Mathematics
2 answers:
Ann [662]3 years ago
8 0

Answer:

9 min

Step-by-step explanation.

half of ten is 5 and half of 8 is 4 and 4 + 5 = 9

inna [77]3 years ago
4 0

Answer:

9⁄40 minute

Step-by-step explanation:

⅛ + ⅒ → 5⁄40 + 4⁄40 = 9⁄40 [Find the Least Common Denominator (LCD), which is 40]

You add these proportions together to get a "'together' time".

I am joyous to assist you anytime.

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What is the percent change of 36;63
STatiana [176]
First, find the difference.
63-36=27
Then, divide by the original number.
27/36=0.75
Then, put it in percentage form.
75%
7 0
3 years ago
Which number is greater than the absolute value of -3/8?<br><br> -5/8<br> -1/8<br> 1/4<br> 0.5
erica [24]
-3/8 = -0.375

-5/8 = -0.625
-1/8 = -0.125
1/4 = 0.25
<span>0.5 = 0.5
</span>
Therefore 1/4 & 0.5 & -1/8 > -3/8

5 0
3 years ago
Read 2 more answers
2(x-5)=3(x+7) Show the process, please.
chubhunter [2.5K]

Answer:

-31

Step-by-step explanation:

(2×x) - (2×5) = (3×x) + (3×7)

2x-10 = 3x+21

2x-3x = 21+10

-x = 31

therefore, x = -31

5 0
3 years ago
Read 2 more answers
Make t as the subject!! HELP MEE
Umnica [9.8K]

Answer:

t = (p^2/mn) - 1/n

Step-by-step explanation:

Here, we want to make t the subject of the formula

we start by equating both sides so as to remove the root

we have this as;

m(t + n)/t = p^2

m(t + n) = tp^2

mt + mn = tp^2

mn = tp^2 - mt

mn = t(p^2-m)

t = (p^2 - m)/mn

t = p^2/mn - 1/n

6 0
3 years ago
4 a3b(-3a5b3+6a4b)+(3a4b2+6ab)2
Irina18 [472]

Answer:

− 12 a 8 b4+ 24 a7 b 2+ 6a 4b 2 + 12 a b

Step-by-step explanation:

Simplify each term

4 0
3 years ago
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