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larisa86 [58]
3 years ago
6

Ms. Higgins would like for her homework assignments to have three addition problems for every five subtraction problems. If she

wants 39 addition problems how many subtraction problem will she have?
Mathematics
1 answer:
NikAS [45]3 years ago
4 0

Answer: 65

3:5=35:x

solve for x

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111

Step-by-step explanation:

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3 years ago
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A plane traveled 460 mph with the wind and 400 mph against the wind. Find the speed of the plane in still air and the speed of t
Fudgin [204]
Let's say the speed of the plane is "p", and the speed of the wind is "w".

when the plane goes with the wind, is not really going "p" mph fast, is really going "p + w" mph fast, because the wind is adding speed to it.

likewise when the plane is going against the wind, is also not going "p" fast is going "p - w" mph fast.  Therefore,

\bf \begin{cases}
p+w=460\implies \boxed{w}=460-p \\
p-w=400\\
----------\\
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7 0
3 years ago
What is the compound interest on 2500 at 6.75 percent compounded daily for 20 days
Zielflug [23.3K]

Answer:

There for the interest on 2500 will be 93

Step-by-step explanation:

A = 2500(1+0.675/365)^0.055

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2 years ago
The expression 9+219+21 factored using the GCF is
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The answer is 249
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The probability density function f(x) for a uniform random variable x defined over the interval [2, 10] is
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F(x) = {1/8, 2 ≤ x ≤ 10}
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