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4 years ago

molly runs 1/3 of a mile in 4 minutes if molly continues at the same speed, how long will it take her to run one mile

Mathematics

1 answer:

Alex17521 [72]4 years ago

6 0

Answer:

1/3 a mile= 4 minutes

3/3 (1 mile)=? minutes

If you multiply 1/3 by 3, you get 1 mile.

So if you multiply 4 by 3 you 12 minutes.

It will take 12 minutes to run a whole mile.

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Choose an appropriate metric unit for the mass of concrete in a section of sidewalk

ratelena [41]

Answer:

It should be a kilogram.

Gram = too small

milligram = too small

meter = distance

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2 years ago

In the expression (44 ÷ 4 + 10) - 20 , with which operation should we start?

Luden [163]

You have to do whats in the parentheses from left to right then subtract the answer you get by 20

(9x10) - (30+30)
90 - 60 = 30

8 x (12+5) -7^2
17
17-49
18 x -32

= -576.

You have to use pemdas for your check off
P=parentheses
E=exponet
M=multiplication
D=division
A=add
S=subtrabt

HOPE IM CORRECT

4 0

3 years ago

Read 2 more answers

Sandy used benchmarks to estimate that there are more inches than feet in one yard. IS SANDY'S ESTIMATE REASONABLE

goblinko [34]

Yea she's right because she's suicidal

8 0

3 years ago

The coordinates of the preimage of polygon ABCD and the image ofA'B'C'D' are given below. What rule describes the transformation

I am Lyosha [343]

The coordinates of polygon ABCD are:

A(4,3) B(4,0) C(-1, 1) D(-1, 4)

and

The coordinates of the transformed polygon A'B'C'D' are:

A'(1, 1) B'(1, -2) C'(-4,-1) D'(-4, 2)

To understand the transformed rule, just remove the coordinates of the actual polygon from the transformed polygon.

A' - A = (1, 1) - (4, 3) = (1 - 4, 1 - 3) = (-3, -2)

Similarly,

B' - B = (1, -2) - (4, 0) = (1 - 4, -2 - 0) = (-3, 2)

The same result will be obtained from other points (C and D). Therefore, the first option (-3, 2) is correct.

3 0

2 years ago

What is −13+2z=−56 Thanks

Zinaida [17]

<h3>Original Equation:</h3>

$-\frac{1}{3}+2z=-\frac{5}{6}$

<h3>Steps:</h3>

<em>*To solve for a variable, isolate the desired variable onto one side.</em>

Firstly, we want to add 1/3 to each side however -5/6 and 1/3 do not share the same denominator, and we want them to have that and we can do that by finding the LCD, or lowest common denominator. To find the LCD, list the multiples of 6 and 3 and the lowest multiple that they share is their LCD. In this case, their LCD is 6. Multiply -1/3 by 2/2:

$-\frac{1}{3}\times \frac{2}{2}=-\frac{2}{6}\\\\-\frac{2}{6}+2z=-\frac{5}{6}$

Now that we have common denominators, add both sides by 2/6:

$2z=-\frac{3}{6}\\\\2z=-\frac{1}{2}$

Next, you want to cancel out 2 to isolate z. Usually, one would divide both sides by 2, however remember that <u>dividing by a number is the same as multiplying by it's reciprocal.</u> To find a number's reciprocal, flip the numerator and denominator around. In this case, since 2 is a <em>whole number</em> this means that the denominator is 1. In this case: 2/1 would become 1/2. Multiply both sides by 1/2:

$\frac{1}{2}\times 2z= -\frac{1}{2}\times \frac{1}{2}\\\\z=-\frac{1}{4}$

<h3>Final Answer:</h3>

<u>Your final answer is z = -1/4.</u>

7 0

3 years ago