MATHEMATICS HIGH SCHOOL

Use the number line below, where RS = 5y + 2, ST = 3y + 6, and RT = 48

Answers

Answer 1

Answer:

RS+ST= RT

(7Y+3)+(2Y+9)= 14Y-8

9Y+12=14Y-8

5Y=20

Y=4

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Marcia performs an experiment in which she pulls a marble from a bag. In herexperiment, she finds that she is twice as likely to pull a red marble as a blue
marble. If Marcia pulls 10 red marbles, how many blue marbles does she pull?

Answers

Answer:

She pulls 5 blue marbles

Step-by-step explanation:

Let x be the number of blue marbles

We are given that In her experiment, she finds that she is twice as likely to pull a red marble as a blue marble.

So, Number of red marbles = 2x

We are given that Marcia pulls 10 red marbles

So, $2x = 10$

$x =(10)/(2)$

x=5

Hence She pulls 5 blue marbles

What number should be placed in the box to help complete the division calculation?

Answers

Answer:

160

Step-by-step explanation:

226

-160

____

-64 (4 in the quotient)

____

Oscar is sealing his boat with a special type of sealent. he needs to mix the sealant with water at a ratio of 3:2. How many gallons of water will he need if he planes to use 9 gallons of sealant?

Answers

3/2 9/x . You have to cross Multiplty.

2*9=18
3*x= 3x

18=3x
*Divide 3 from both sides

6=x

What is 3/8 plus 5/16

Answers

3/8 + 5/16 = (3/8)*(2/2) + 5/16
= (3*2)/(8*2) + 5/16
= 6/16 + 5/16
= (6+5)/16
= 11/16

Sue has a balance of $35in her checking account. She writes one of the check for$10,and three checks for $9 each what is her balance now

Answers

We have to subtract the total of the written checks from the total money in her balance; so first lets add the total of the checks:
$10 + $9 + $9 + $9 = $37.00
Now that we found the total money of checks we must now subtract it from the balance:
$35 - $37 = -$2.00
So her ending balance is -$2.00

3 less than the quotient of 20 and x