MATHEMATICS HIGH SCHOOL

A bus and a car leave from the same city traveling in opposite directions. The bus leaves 2 hours before the car does. The bus travels at a steady speed of 50 mph while the car travels at 70 mph. After how many hours will the bus and car be 800 miles apart?If h represents the number of hours the bus travels, then which of the following expressions represents the number of miles the car travels?

a.70(h + 2)
b.70(h - 2)
c.70h

Answers

Answer 1
Answer: The formula for this equation would be B. 70(h - 2)
Answer 2
Answer:

Answer:

70(h-2) is the correct answer

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Consider the expression –3(y – 5)2 – 9 + 7y.Which statements are true about the process and simplified product? Check all that apply.

A=The first step in simplifying is to distribute the –3 throughout the parentheses.
B=There are 3 terms in the simplified product.
C=The simplified product is a degree 3 polynomial.
D=The final simplified product is –3y2 + 7y – 9.
E=The final simplified product is –3y2 + 37y – 84.

Answers

Answer: Option 'B' and 'E' are correct.

Step-by-step explanation:

Since we have given that

-3(y-y)^2-9+7y

Simplification needs a few steps:

-3(y-5)^2-9+7y\n=-3(y^2+25-10y)-9+7y\n=-3y^2-75+30y-9+7y\n=-3y^2+37y-84

So, Option 'B' and 'E' are correct.

As Option 'B' says there are 3 terms in the simplified product, which is true.

Answer:

B and E

Step-by-step explanation:

One box of cake mix makes a maximum of 24 cupcakes. If the caterer needs 300 cupcakes for the event, what is the minimum number of boxes of cake mix he will need?

Answers

the answer would be 13 boxes with 12 cupcakes left over
12.5 boxes (just a guess)

A number n plus 7 is less than or equal to 9

Answers

Final answer:

The subject of this question is Mathematics. The inequality n + 7 ≤ 9 can be solved by subtracting 7 from both sides. The solution is n ≤ 2.

Explanation:

The subject of this question is Mathematics. The question involves solving an inequality involving a number, n, that is added to 7 and is less than or equal to 9. To find the possible values of n, we can subtract 7 from both sides of the inequality:



n + 7 ≤ 9

n ≤ 9 - 7

n ≤ 2

So, the values of n that satisfy the inequality are any number less than or equal to 2.

Learn more about Solving Inequalities here:

brainly.com/question/26855203

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mario went on a hike with his friends. they hiked 2,24 miles an hour for 8 hour. how many miles did they hike in all

Answers

Do 224x8
This would equal 1792.
He traveled 1792 miles.
I hope you understand. :-)
17,92 because 2,24 times 8 equals 17,92

3x+y=8 I really don't understand this and I have tried to get the answer but always end up wrong.3x-y=4

Answers

Answer:

The solution of the system of the equation is (2, 2)

Step-by-step explanation:

Let us solve the system of equations

∵ 3x + y = 8 ⇒ (1)

∵ 3x - y = 4 ⇒ (2)

→ Add equations (1) and (2) to eliminate y

∴ (3x + 3x) + (y + -y) = (8 + 4)

∴ 6x + 0 = 12

∴ 6x = 12

→ Divide both sides by 6 to find x

∵ (6x)/(6)=(12)/(6)

∴ x = 2

→ Substitute the value of x in equation (1) to find y

∵ 3(2) + y = 8

∴ 6 + y = 8

→ Subtract 6 from both sides

∵ 6 - 6 + y = 8 - 6

∴ y = 2

∴ The solution of the system of the equation is (2, 2)

Hello, myself Joyee. I am very much weak at Math and never get good at it. Though i have so many problems to ask. PLZ help me. Firstly, I need to know about this problem.

If Marie has twice as much money as Tim, who has three times as much money as William, What is the ratio of the amount of money William has to the amount of money of Marie has ?

A) 1:8, B) 1:6, C) 1:4, D) 1:2, E) 2:1

Answers

Tim - 3x
Marie - 6x
William - x

(William)/(Marie)=(x)/(6x)=(1)/(6) \Rightarrow 1:6
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