a runner is 7/8 mile from the finsh line. she can travel 3/8 mile per minute,how long will it take her to finsh the race

Mathematics

1 answer:

Simora [160]4 years ago

4 0

I hope this helps you

if 3/8 miles per a hour

7/8 miles ? hour

?.3/8=7/8.1

?=7/3

?=2,3333... hour

You might be interested in

150g of roquefort cheese cost £1.68<br> work out the cost of 250g of roquefort

mafiozo [28]

ANSWER

250g of Roquefort cheese will cost

£2.8

EXPLANATION

If 150g of roquefort cheese cost £1.68, we can write the ratio,

$150: 1.68$

Let 250g of Roquefort cheese cost £x.

Then we can again write the ratio,

$250:x$

We can equate the two ratios and solve for x.

$150: 1.68 = 250:x$

We rewrite the ratios as fractions to obtain,

$\frac{150}{1.68} = \frac{250}{x}$

We cross multiply to get,

$150x = 250 \times 1.68$
This implies that,

$150x = 420$

Divide both sides by 150 to get,

$x = \frac{420}{150}$
$x = 2.8$

Therefore 250g of Roquefort cheese will cost

£2.8

6 0

4 years ago

What is the x-value of the solution to this system of equations?

Ann [662]

Plug in for x.

7(2y - 4) + 5y = -66

14y - 28 + 5y = -66

19y - 28 = -66

19y = -38

y = -2

Put it back into the equation.
2(-2) - 4 = -8
x = -8

The x-value is x = -8

4 0

3 years ago

Use the diagram to determine the base and the height of the triangle. The formula for the area of a triangle is A=bh/2

Arlecino [84]

The answer is 32ft. What you have to do is multiply 10 and 6.4 which equals 64. Then you take 64 and divide it by 2 and you get the answer of 32. The equation goes like this 10ft X 6.4ft = 64ft/ 64ft divided by 2 = 32ft.

8 0

3 years ago

Read 2 more answers

One day less than 3 weeks?

max2010maxim [7]

Answer:

20 Days

Explanation:

21 Days = 3 Weeks

Minus 1, that is 20 days.

6 0

3 years ago