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3 years ago

What's 8/7 divdied by 5/4?

Mathematics

1 answer:

MrRa [10]3 years ago

6 0

8/7 ÷ 5/4

8/7 • 4/5

32/35

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Bella and her sisters have 8 popsicles they have to fig rout how to split them what is the answer do we have to multiply, divide

miskamm [114]

Divide, because you are splitting the 8 popsicles between them.

3 0

2 years ago

I need help on #10

Ede4ka [16]

D = sq.root of((x2 - x1)^2 + (y2 - y1)^2)
sq.root of 13 = sq.root of((x - (-2))^2 + (1 - 3)^2)
= sq.root of((x + 2)^2 + (-2)^2)
= sq.root of (x^2 + 4x + 4 + 4)
= sq.root of (x^2 + 4x + 8)

Now if we square both sides:
x^2 + 4x + 8 = 13
x^2 + 4x - 5 = 0
(x + 5)(x - 1) = 0
x = -5 or x = 1

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3 years ago

For what value does x does 3^2x= g^3x-4 A)1 B)2 C)3 D)4

netineya [11]

The question has an error because the letter g does not make sense in the context.

I will assume that the g is really the number 9.

In that case, the equation to solve would be:

$3^{2x} = 9^{3x-4}$

You can solve for x following these steps:

1) make $9=3^2$

=>

$3^{2x} = 3^{2(3x-4)}$

2) Given that the basis are equal the exponents have to be equal =>

2x = 2(3x - 4)

3) Solve:

2x = 6x - 8

6x - 2x = 8

4x = 8

x = 8/4

x = 2 which is the option B) which leads me to think that a 9 instead of g in the equation should be right.

Under that assumption, the answer is the option B) x = 2.

3 0

3 years ago

Jina has scored 79, 85, 89 and 68 on her previous four tests. What score does she need on her next test so that her mean is 80?

poizon [28]

Answer:

Step-by-step explanation:

79, 85, 89, 68 have a mean of 80.25 according to calculator.net. the number itself Is close to the number you want, in this case 80, i input 80, but it gave me a score of 80.2, so i tried again with 81, it gave me a score of 80.4, so the third attempt was successful with 79 being the input and 80 the output

calculator.net is approved on my school computer so there is a chance it is on yours as well.

4 0

3 years ago

The area of a square floor on a scale drawing is 25 square centimeters, and the scale drawing is 1 centimeter:5 ft. What is the

Dominik [7]

Answer:

$625ft^{2}$

Step-by-step explanation:

First get the l by finding the square root of the area

$\sqrt{25}$ = 5cm

since 1cm = 5ft

what about 5cm =?

(5cm×5ft)/1cm

l=25ft

area of the actual floor is l × l

$25^{2}$

which is $625ft^{2}$

6 0

3 years ago