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3 years ago

3 1/2 over 4 1/4 is equal to ? over 5 1/5

Mathematics

1 answer:

bekas [8.4K]3 years ago

3 0

See picture reply for answer.

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2x=17 what is the value of x

WITCHER [35]

Answer: X = 8.5

Step-by-step explanation:

2x = 17

divide by 2

x = 8.5

3 0

3 years ago

(1 point) Mike and Lisa are brother and sister. Mike has as many brothers as sisters, and Lisa has three times as many brothers

Elza [17]

Answer:

Step-by-step explanation:

Given that Mike and Lisa are brother and sister. Mike has as many brothers as sisters, and Lisa has three times as many brothers as sisters

i.e. If Mike has x sisters, then he has x brothers.

i.e. no of sons in total = x+1 (including Mike)

No of daughters = x

Lisa's brothers = x+1 and and Lisa sisters = x-1 (exclusing Lisa)

Given that

$x+1 =3(x-1)\\2x =4\\x=2$

Hence we find that there are 3 sons and two daughters in the family.

3 0

4 years ago

Darien ordered soda for $2.75, a sandwich for $8.50, and a dessert for $3.85. Sales tax was $1.15. Use mental math to find the t

natta225 [31]

What I would do is start with the price of the dessert and the sales tax $3.85+ $1.15= $5. I started with this because when you add the cents they equal a dollar which makes it easier to continue.

Then I would add the 2.75. This would be 7.75.

Then add 7.75 + 8.50. To simplify this, you can add 7 + 8, then .75+ .50

Which would equal 15 + 1.25 + 16.25

3 0

3 years ago

What is the surface area of each solid pyramid? Round answers to the nearest square unit.

e-lub [12.9K]

Answer:

The total surface area is

57ft^2.

4 0

2 years ago

One end of a ladder 32 feet long is placed 10 feet from the outer wall of a building that stands on the ground level. How far up

ladessa [460]

Answer:

30 ft

Step-by-step explanation:

This is a classic right triangle problem, where the length of the ladder represents the hypotenuse, where the ladder is lengthwise from the building is the base of the triangle, and what we are looking for is the height of the triangle. Pythagorean's Theorem will help us find this length.

$32^2-10^2=y^2$ so

1024 - 100 = y^2 and

y = 30.4 so 30 feet

4 0

3 years ago