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anyanavicka [17]
3 years ago
9

Gabriella went skiing. She paid $35 to rent skis and $15 an hour to ski. If she paid $95 how many hours did she ski? Write an eq

uation and solve it.
Mathematics
2 answers:
STatiana [176]3 years ago
7 0
35+15t=95  subtract 35 from both sides

15t=60  divide both sides by 15

t=4

So Gabriella went skiing for 4 hours.
muminat3 years ago
5 0
Gabriela went skiing for 4 hours
Subtract 35 from 95 you get 60,
divide 60 by 15 and you get...
4 hours
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A school has 1000 students. of these, 3/4 are boys. how many of the students are boys? how many of the students are girls?
weqwewe [10]

Answer:

750 students are boys, 250 are girls.

Step-by-step explanation:

1/4 of 1000 is 250.

250 + 250 + 250 = 750 boys.

if 3/4 are boys, then 1/4 (the rest of the school population) are girls.

150 students are girls.

6 0
1 year ago
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If lateral surface area of cube is double then the ratio of volume of new cube to original cube ​
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Answer:

  2√2

Step-by-step explanation:

The area ratio is the square of the side length ratio, so the ratio of side lengths is √2.

The volume ratio is the cube of the side length ratio, so the new cube has a volume that is (√2)³ times that of the original.

The volume ratio is 2√2.

3 0
2 years ago
The area of triangle ABC is 3√2 square inches. Find the measure of the acute angle, A, if b = 9 meters and c = 2 meters.
taurus [48]

Answer:

A\approx 28^{\circ}

Step-by-step explanation:

Please find the attachment.  

We have been given that area of triangle ABC is 3√2 square inches.

\text{Area}=\frac{1}{2}\text{Base}\times \text{height}

We know that area of triangle an be found using trigonometry as:

\text{Area}=\frac{1}{2}\times c\times h

\text{sin}(A)=\frac{h}{9}\\h=9\cdot \text{sin}(A)

3\sqrt{2}=\frac{1}{2}\times 2\times 9\cdot \text{sin}(A)

3\sqrt{2}=9\cdot \text{sin}(A)

9\cdot \text{sin}(A)=3\sqrt{2}

\text{sin}(A)=\frac{3\sqrt{2}}{9}

\text{sin}(A)=\frac{\sqrt{2}}{3}

Now, we will use inverse sine to find the value of angle A as:

A=\text{sin}^{-1}(\frac{\sqrt{2}}{3})

A=28.1255057^{\circ}

A\approx 28^{\circ}

Therefore, the measure of angle A is approximately 28 degrees.

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3 years ago
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Answer:

Derivative: P’(x) = 200 - 2x

If P’(x) = 0 , x = 100

Therefore P’ is positive and P increases until x = 100

So the maximum units to maximize profits is 100 units

And for 100 units the profit in dollar is:

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4 0
3 years ago
Find the value of each measure.
zloy xaker [14]

The two congruent base angles tell us that this is an isosceles triangle, meaning the triangle has two congruent sides. Therefore, we can set these two expressions equal to each other and solve from there.

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Side = 15(3) + 7 = 45 + 7 = 52

Hope this helps!

4 0
3 years ago
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