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3 years ago

A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. What is

Mathematics

1 answer:

ella [17]3 years ago

4 0

Answer:

Step-by-step explanation:

5:9 is the original ratio.

we know that anything times 5 would have the ones place of either 5 or 0 so we can eliminate c and d. Then we test out the other two choices.

25/5=5

45/9=5

A is correct.

15/5=3

45/9=5

Option B is incorrect.

so, the ratio is 25:45

The answer is A!

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What is the area of the shaded region in square millimeters

Katena32 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Write as a single logarithm (show steps)

Effectus [21]

1/3 log 125 can be rewritten as (1/3) log 5^3 = log 5

Similarly, 1/3 log 8 can be re-written as 1/3 log 2^3, same as (1/3)(3 log 2)= log 2

Thus, the fraction can be written in simpified form as log 5 / log 2.

The second term is the same as log m^5.

Thus, your final result is (log 5) / (log 2) + log m^5.

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4 years ago

Can anyone please help me with problems 81, 83, and 86? PLeASE and THaNK YOU!

IgorC [24]

81.
$x \times 1.5 + x \times 2.5 + \frac{x}{2} \times 4 + ( \frac{x}{2} + 1) \times 3 = 78 \\ 4 \times x + 4 \times \frac{x}{2} + 3 \times \frac{x}{2} + 3 = 78 \\ 4 \times x + 7 \times \frac{x}{2} = 75$
multiply everything with 2
$8 \times x + 7 \times x = 150 \\ 15 \times x = 150 \\ x = \frac{150}{15} \\ x = 10$

x is the number of 1.50 and 2.50 wrenches he bought. do the calculations for the rest of them

83.
$(x + 2)\times \frac{1}{4} + x \times \frac{1}{2} = 11.75$
multiply with 4
$x + 2 + 2 \times x = 47 \\ 3 \times x = 47 - 2 \\ 3 \times x = 45 \\ x = \frac{45}{3} \\ x = 15$
x is the amount of half dollars in the pile of coins. do the calculations for the quarters.

86.
$3 \times x + 2 \times x + x = 24 \\ 6 \times x = 24 \\ x = \frac{24}{6} \\ x = 4$
x is the amount of peaches cans, do the calculations for the rest.

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3 years ago

What is the interquartile range of the data?

zysi [14]

An interquartile range is finding the median of the first half of the data set, and the second half, then subtracting the first median from the second one.

The median of the data set is..

<span>17, 18, 18, 20, 23, 25, 27, 27, 34, 38, 40, 46, 46, 62, 67

Now we have to find the interquartile points.

</span>17, 18, 18, 20, 23, 25, 27, 27, 34, 38, 40, 46, 46, 62, 67

The interquartile points are 20 and 46. So subtract:

46 - 20 = 26

The answer is 26. :)

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)

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3 years ago

Read 2 more answers

What is the answer to 1.43 x -19/37

vovikov84 [41]

1.43 multiplied by the fraction -19 over 37 gives you the answer of -2717 over 3700

5 0

3 years ago