plz help quick will mark as brainliest

Basically what you do is multiply the distance by the time, for example:

7 1/2 miles = 1/2 hour

so to get the amount of miles in one hour you get the miles and times it by two so it would go like this:

7 1/2 | 15 |

= | = |

1/2 | 1 |

then for one and a half you get the 1 hour answer and add the first one like this:

22.5 miles = 1 1/2 miles

and you continue that pattern!!! If you need more help just reply to this answer i'm in 7th grade so i can help with this stuff

Answer:

Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.

So, about 200 kg gunpowder

Answer:

Step-by-step explanation:

its says about so can i be bigger than 8

Answer:

Step-by-step explanation:

12/33

Answer:

y=1/3x+3

Step-by-step explanation:

We can write this in a y=mx+b format.

b is the y-intercept and m is the slope.

The y-intercept is where x=0, or where the line intersects the y-axis. We can see that there is a point on the y-axis: (0,3). Therefore, the y-intercept, or b, is 3.

So far, we have y=mx+3.

Now we can find the slope with rise over run. (rise being the change in y and the run being the change in x.)

From one point to the other, it goes up 1 (the rise) and over 3 (the run).

m=rise/run=1/3.

y=1/3x+3.

Hope this helped.

Answer: explanation

Step-by-step explanation:

I am unsure about number 1, but for number 4, you have to fund the unit rate.

Answer:

Answer for Number 1: 54 1/2

Answer for Number 4: $2.36

Step-by-step explanation:

Explanation for number 1:

    1.  length x width = area right? So area divided by length = width!

        159 3/8 divided by 18 3/4 = 8 1/2

    2. width + width + length + length = perimeter right? Now you know the

        width,  you can do...

         8 1/2 + 8 1/2 + 18 3/4 + 18 3/4 = 54 1/2

Explanation for number 4:

    1.  You know that 4 cup = 1 quart right?

        9.44 = 1 quart

    2. So you divide it:

        9.44 / 4 = $2.36

Answer: A pair of shoes that costs $20 is sold to the customer for $35, and A shirt that costs $12 is sold to the customer for $20.

Step-by-step explanation:

1. Half (or 50%) of 20 is 10, so 20+10=30, but 35 is bigger than 30.

2. Half (or 50%) of 12 is 6, so 12+8=18, but 20 is bigger than 18.

Answer:

The line segment would end when Kiley got off the plane.  

Step-by-step explanation:

Pretty simple unless i'm missing something.

Answer: 36

Step-by-step explanation:

There are a total of 36 numbers, you can find that out by multiplying 6 x 6.

There is only 1 number pair can has a sum of 2 which is 1,1

Answer:

m=2

Step-by-step explanation:

When you put a number into the inverse of a function (f^-1) you get the original number back.

Ex: f^-1(11) = (11-3)/2 = 4

f(4) = 2×4+3 = 11

So, f(-5)=-2

So, when x is -5,

f(x) = -2

f(x)=m(-5)+8

-2=m(-5) + 8

m=2

Answer:The expression 9.00x+4.50y represents the total amount of money Harriet earns at her two jobs, where x represents the number of hours worked at job X and y ...

Step-by-step explanation:

Answer:

-{2√7} or {2√7}

Step-by-step explanation:

1) Simplify the exponents 6^2 and 8^2 by multiplying 6*6=36 and 8*8=64.

2) Write an equation, 36+b^2=64

3) Subtract 36 from both sides, b^2=28

4) Apply a square root to both sides, √(b^2)=√(28)

5) Simplify the equation, b=-√(28) or b=√28

6) If you want, factor the square root by finding a factor that is a square number, -{√(4)*√7} or  {√(4)*√7};  -{2√7} or {2√7}

Assign the numbers to the number line in the following order:

2.15=2.15

220%=2.2

9/4=2.25

*2.15* is easy enough to place as it is already in decimal form. However, the other 2 options need to be converted to decimals in order to be placed. We have the fraction 9/4 and percentage 220%. 9/4 can either be simply divided on a calculator or turned into the mixed fraction 2 and 1/4, which is *2.25*. Finally, we know that converting a decimal to a percentage we multiply the decimal by 100. Therefore, to convert a percentage to a decimal we divide 100 or move the decimal to the left 2 places. With this conversion rule, 220% transforms to *2.2* and we have the third and final number for our number line. Arranging these three numbers from least to greatest:

2.15, 2.2, 2.25

Answer:

Step-by-step explanation:

Area of a square = length²

If the area of a square is given, in order to determine the length, find the square root of the area.

√16 / 36 = 4/6 foot

Answer:

3(16x+9)/4

make sure it's a fraction

Answer:

27 11/4x

Step-by-step explanation:

First we add the similar parts of the expression.

Whole numbers

6 + 9 + 5 + 7 = 27

Then we add the fractions that dont have x.

We only add the numerators (2 and 3) and dont change the denominators (4)

2/4 + 3/4 = 5/4

Now we add the ones with x.

5/4 + 3/4x + 3/4x = 11/4x

Now we combine those parts together, making

27 11/4x

sorry if Im wrong

Answer:

0.123 miles per min

8 mins per mile

The runner is talking about part (b)

Part a) is miles per minute and the runner said they did 10 minutes every mile same thing as minutes per mile or part b

Step-by-step explanation:

Since your doing per minute you do you do the amount of miles over the amount of minutes so you can see how many miles the runner went in each minute

And when doing per mile its the same idea you just minutes over miles now so you get for every mile the number of minutes.

Answer:

25.14cm3

Step-by-step explanation:

Answer:

\(\frac{5}{2}\)

Step-by-step explanation

There are two methods to your answer. You could use the rise over run method or the formula.

Rise over Run: Start at the point -3 and count up to -2. If you count, that's 5 points up. Then count sideways, then you get 2. so rise (5) over run (2). Your answer would be 5/2.

Formula: The formula is, \(\frac{y(2)-y(1)}{x(2)-x(1)}\). Pick two coordinates. Let's pick (0,-3) and (2,2). Here are the steps:

\(\frac{2-(-3)}{2-0}\)

\(\frac{2+3}{2}\)

\(\frac{5}{2}\)

Hope this helped!

5555.555550006874

Step-by-step explanation:

Answer:

243 pie hope it helps i am in 7th grade I think plz don't get mad

explanation:

Answer:

volume of the sphere=4/3πr³

=

\( \frac{4}{3} \times \pi \times {9}^{3} \\ 972\pi \: {in}^{2} \)

Answer:

The original price is 45.25$

$38.35 + 18% = 45.25$

Answer: 0.06 and 1.39 B 0.06 and 13.9 C 0.6 and 1.39 D 0.6 and 13.9.

Step-by-step explanation: Which two factors would give a product of 8.34? 0.06 and 1.39 B 0.06 and 13.9 C 0.6 and 1.39 D 0.6 and 13.9.

Answer:

I think it is 2,304

Step-by-step explanation:

What is the value of x?

Answer: x=148