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2 years ago

5

Peter practices violin for a total of 55 minutes over the weekend he practices for 25 minutes on Saturday how many minutes does

he practice on Sunday

2 answers:

xxTIMURxx [149]2 years ago

4 0

It’s simple all you do is subtract 55-25=30 you’re welcome have a good night

Bess [88]2 years ago

3 0

Answer:

30 minutes.

Step-by-step explanation:

55 - 25 = 30

Hope this helped, have a great day/night!

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If m varies directly with n.<br>and m = 20 when n = 5.<br>what is it m= 18?

katovenus [111]

18 is a factor of 3
So multiply by 3
M=18 n=7.5

5 0

2 years ago

Solve<br> -21 = -9 + 2/3b

Svet_ta [14]

Final Answer: $b = -18$

Steps/Reasons/Explanation:

Question: Solve $-21 = -9 + \frac{2}{3}b$ .

<u>Step 1</u>: Simplify $\frac{2}{3}b$ to $\frac{2b}{3}$ .

$-21 = -9 + \frac{2b}{3}$

<u>Step 2</u>: Regroup terms.

$-21 = \frac{2b}{3} - 9$

<u>Step 3</u>: Add $9$ to both sides.

$-21 + 9 = \frac{2b}{3}$

<u>Step 4</u>: Simplify $-21 + 9$ to $-12$ .

$-12 = \frac{2b}{3}$

<u>Step 5</u>: Multiply both sides by $3$ .

$-12$ × $3 = 2b$

<u>Step 6</u>: Simplify $-12$ × $3$ to $-36$ .

$-36 = 2b$

<u>Step 7</u>: Divide both sides by $2$ .

$-\frac{36}{2} = b$

<u>Step 8</u>: Simplify $-\frac{36}{2}$ to $-18$ .

$-18 = b$

<u>Step 9</u>: Switch sides.

$b = -18$

~I hope I helped you :)~

3 0

2 years ago

Write 0.00000123 in scientific notation ?

Lubov Fominskaja [6]

In a scientific notation, you have to put a decimal right after the first number (unless it is a zero). How many times you move the decimal from its original spot determines the answer. If you move the decimal forward that means you put a negative number
<span>
0.00000123 = 1.23 (moved the decimal point forward 6 times, so the answer is --->)
</span> $1.23*10^{-6}$ <span>

</span>

6 0

3 years ago

Fill in the blank with the least common denominator 5/6 + x = 7/12

irinina [24]

Answer: The least common denominator is 12

x= -3/12

Simplified: -1/4

Step-by-step explanation:

Do 7/12 - 5/6

7/12 - 10/12

= -3/12

Simplified: -1/4

7 0

1 year ago

A shipping container is in the shape of a right rectangular prism with a length of 7.5

katrin [286]

Answer:

about 1036 pounds

Step-by-step explanation:

First we'll find the volume, then we'll use that to get the weight.

V = lwh

= 7.5 * 14 * 10.5

= 1102.5 cubic feet

We know that it weighs .94 pounds per cubic foot. The per tells us to multiply.

1102.5 cubic feet * .94 pound / cubic foot

= 1036.35 pounds

<u>= about 1036 pounds</u>

5 0

3 years ago