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Annette [7]
3 years ago
12

Solve 210 ÷ 30 = ___ using mental math. 7 70 700 7,000

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
4 0
The answer would be 7
muminat3 years ago
3 0

Answer:

7

-by-step explanation:

none needed just do it in your head like 21 devided by 3=7

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Jack has two jars of wax. One jar is 1/6 full. The other jar is 4/6 full. Write an equation to find the amount of wax Jack has.
Solnce55 [7]

Answer:

1/6 + 4/6 = 5/6

Step-by-step explanation:

I hope this helped

5 0
3 years ago
7. An aquarium is shown below. The
Mnenie [13.5K]

Answer:

1920 in³

Step-by-step explanation:

The volume of the water can be gotten by calculation the volume of the aquarium it fills/occupies.

Since the water fills to exactly three inches below the top of the  aquarium, hence the height of the water in the aquarium is given as:

height of water = 13 in - 3 in = 10 in

Therefore the volume of the water in the tank is given by the formula:

Volume of water = height of water * breadth of tank * length of tank

Volume of water = 10 in * 8 in * 24 in = 1920 in³

6 0
2 years ago
My other account just got banned for 40 something hour's how lame and I did nun so idk why I got banned but it's whatever
Alexxx [7]

Answer:

it is what is iss

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A standard deck of 52 playing cards has 4 suits with 13 different cards in each suit. How many different five-card hands are pos
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I think the answer is B
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3 years ago
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A software designer is mapping the streets for a new racing game. all of the streets are depicted as either perpendicular or par
ElenaW [278]

The equation of the central street PQ is  -1.5x - 3.5y = -31.5 option (b) is correct.

<h3>What is a straight line?</h3>

A straight line is a combination of endless points joined on both sides of the point.

We have a straight line:

-7x+3y=-21.5  

Convert it to the general form given below:

\rm y=mx+c

\rm 3y=-21.5+7x\\\\ \rm y = \frac{-21.5}{3}+\frac{7}{3}x or

\rm y = \frac{7}{3}x-\frac{21.5}{3}

m = \frac{7}{3}   (Slope of AB line)

For the slope(m') of the PQ line:

\rm m'=-\frac{1}{m}    ( because AB and PQ are perpendicular to each other)

\rm m' = -\frac{3}{7}

We know the:

\rm (y-y')=m'(x-x')

Where (x', y') = (7, 6), we get:

\rm (y-6)=-\frac{3}{7} (x-7)

\rm 7(y-6)=-3 (x-7)\\\\\rm 7y-42= -3x+21\\\\\rm 7y= -3x+21+42\\\\\rm 3x+7y=63

\rm -1.5x-3.5y=-31.5   (multiply by -1/2 on both sides)

Thus, the equation of the central street PQ is  -1.5x - 3.5y = -31.5

Learn more about the straight line.

brainly.com/question/3493733

6 0
1 year ago
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