2 years ago

75% of _____ oranges is 15 oranges (Fill in the blanks)

Mathematics

1 answer:

Mila [183]2 years ago

8 0

Try this: 0.75n = 15. Divide both sides by 0.75 to solve for n: n = 15/0.75
n = 20

There are originally 20 oranges.

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On a map, the scale shown is 1 inch: 20 miles. If a city is 900 square miles, what is the area of the city on the map?

WITCHER [35]

Answer:

2.25 square inches

Step-by-step explanation:

we know that

The scale is $1\ inch: 20\ miles$

That means

1 inch on a map represent 20 miles in the city

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Applying proportion

$\frac{1}{400}\ \frac{in^2}{mi^2}=\frac{x}{900}\ \frac{in^2}{mi^2}\\\\x=900/400\\\\x=2.25\ in^2$

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2 years ago

If r/s = 22 and the value of r is 242, what is the value of s

jekas [21]

Answer:

s = 11

Step-by-step explanation:

Given

$\frac{r}{s}$ = 22 ← substitute r = 242

$\frac{242}{s}$ = 22 ( multiply both sides by s )

242 = 22s ( divide both sides by 22 )

11 = s

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2 years ago

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If y=1/4 when x=5, find y when x=7, given that y directly with x

mariarad [96]

Answer:

7/20

Step-by-step explanation:

Since y varies directly with x, the ratio of y to x is proportional.

... y / 7 = (1/4)/(5)

... y / 7 = 1 / 20 . . . . simplify

... y = 7/20 . . . . . multiply by 7

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3 years ago

The radius of the circle on a basketball court is 6 ft. What are the approximate circumference and area of the circle?

Andrei [34K]

ANSWER:

Circumference= 37.7

Area= 113.1

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2 years ago

How to solve step by step [(7,5-1,5) x 10^-11]^2 ??

Oliga [24]

1.7,5-1,5=6
2.10-11=-1
3.6×-1=-6
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2 years ago