3 years ago

HELPPP PLSSSSSSSSSSSSS

Mathematics

1 answer:

Oksana_A [137]3 years ago

3 0

Answer:

x=(-1/10) is the answer of given algebra

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Alisa bought 3 shirts for $29 each and then spent $15 on lunch. She has $31 left. How much money did she have before?

pentagon [3]

Answer:

$133

Step-by-step explanation:

Let x = amount of money she had before she spent any money.

x - 29 - 29 - 29 - 15 = 31

x - 102 = 31

x = 133

Answer: She had $133.

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3 years ago

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I need help with this question please help

forsale [732]

Answer:

Step-by-step explanation:

The formula of a surface area of a cylinder:

$S.A.=2\pi r^2+2\pi rH$

r - radius

H - height

We have:

r = 5 in

H = 4 in

Substitute:

$S.A.=2\pi(5^2)+2\pi(5)(4)=2\pi(25)+2\pi(20)\\\\=50\pi+40\pi=90\pi\ in^2$

$\pi\approx\dfrac{22}{7}$

Substitute:

$S.A.\approx90\cdot\dfrac{22}{7}=\dfrac{1980}{7}\approx282.857\ in^2$

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4 years ago

Use a number line to order the numbers from least to greatest.PLS EXPLAIN IF YOU CAN HURRY

tresset_1 [31]

Answer:

1. 1.02, 1.07, 1.24, 1.33

2. 1.01, 1.06, 1.2, 1.42

3. 0.8, 0.87, 0.98, 1.23

4. 0.06, 0.5, 1.4, 1.23

Step-by-step explanation:

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4 years ago

Find the diameter of a cone that has a volume of 104.67 cubic inches and a height of 4 inches. Use 3.14 for pi.

Lady bird [3.3K]

Answer:

Step-by-step explanation:

The volume of a cone is

$V=\frac{1}{3}\pi r^2h$

Filling in what we have:

$104.67=\frac{1}{3}(3.14)r^2(4)$ and simplifying a bit:

$104.67=\frac{1}{3}(12.56)r^2$

Multiply both sides by 3 to get:

$314.01=12.56r^2$

Divide both sides by 12.56 to get:

$25.00079618=r^2$ and take the square root of both sides to find the radius:

r = 5

If the radius is 5 and the radius by definition is half the diameter, then the diameter is 10 inches.

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3 years ago

What is the probability that a randomly chosen point on the grid below is in the blue area?

krok68 [10]

Need to have a pic with question

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