14 to 21= ___ to 15 help me find the ratio

Answers

Answer 1

Answer: 14 / 21 = X/15 => X = 14 * 15 / 21 => divide by 7 => 2 * 15 / 3 => divide by 3 => 2 * 5 / 1 => 10

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Bonny's truck has a fuel tank which holds 50 gallons, and she typically drives 425 miles on a full tank. She has added a second tank, which holds 30 gallons. To figure how far she can go between fill-ups now, she multiplies 50 x 425, then divides by 30, to get 708.3 miles. Is this correct?A) Yes. B) No; she should have multiplied 425 by 30 + 50. C) No; she should have divided 425 by 50, then multiplied by 80. D) No; she should have divided 50 by 30, then multiplied that by 425. SHOW WORK!!
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Which number sentences could be used to solve this problem?The members of an art club brought art supplies to work on a project.
Each of the 15 members brought 4 paint brushes and 3 tubes of paint.
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Answers

The answer is the first and third box. Both give you 105 art supplies which is the correct number you should get.

X + 3y = 5
-x + 6y = 4

Answers

Answer:

x=2, y=1. (2, 1).

Step-by-step explanation:

x+3y=5

-x+6y=4

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9y=9

y=9/9

y=1

x+3(1)=5

x+3=5

x=5-3

x=2

Which dice is not a regular polyhedron.
why?

Answers

Chinese dice are polyhedron, but a normal dice is a square. "A polyhedron is a solid in three dimensions with flat polygonal faces, straight edges and sharp corners or vertices."

Tina is making rectangular signs. Each poster has an area of 1800 square inches and the length is 30 inches more than the width. Find the length and width of her sign. If x represents the width of each sign, select all of the equations that could be used to solve this problem. 2(x)+2(x+30)=1800 (x+30)(x)=1800 x(30x)=1800 x(x+30)=1800 Part 2 Find the dimensions of each rectangular sign. width = inches length = inches

Answers

Let the width be x. Since the length is 30inches longer than the width, the length is 30 + x.
Area = length x width = (30 + x)(x)
i.e. (30 + x)(x) = 1800 square inches.

$30x + x^(2) =1800 \n x^(2) +30x-1800=0 \n x^(2) -30x+60x-1800=0 \n ( x^(2) -30x)+(60x-1800)=0 \n x(x-30)+60(x-30)=0 \n (x+60)(x-30)=0$
x + 60 = 0 or x - 30 = 0
x = -60 or x = 30
but the width cannot be a negative number, hence x = 30inches
i.e. width = 30 inches
length = 30 + 30 = 60 inches.

Please help me answer this questionadd t to s, raise the result to the 10th power, then double what you have

Answers

Hello,

add t to s $t+s$

raise the result to the 10th power $(t+s)^(10)$

then double what you have $2*(t+s)^(10)$

What is 2.54 as a mixed number?
What is 3.750 as a mixed number?

Answers

$2.54=2+0.54=2+(54)/(100)=2(54:2)/(100:2)=\boxed{2(27)/(50)}\n\n3.750=3.75=3+0.75=3+(75)/(100)=3(75:25)/(100:25)=\boxed{3(3)/(4)}$

2.54 is pronounced two and fifty four hundredths so u would write it exactly as u hear it. 2, and 52 over 100. So, 2.54 is 2 and 54/100. This can be simplified to 2 and 27/50. 3.750 is the same as 3.75 so it is pronounced three and seventy five hundredths. Same as the other example, this is 3 and 75/100. This can be simplified to 3 and 3/4 because both 75 and 100 can be divided by 25.

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Is 6,500 ten times as much as 65 explanation and how to get the answer