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2 years ago

When you have -13+20 how exactly did you get 7?

2 answers:

7 0

Imagine a number line. 0 is the start and it either goes to the right which is higher or to the left which is lower. -13 goes to the left since all negative numbers are at the left of 0. So you basically count up from -13 which is -12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1, and 0. We just went 13 places up, so only 7 more to go. Counting up from 0 seven places is 7. So the answer is seven. Keep practicing and it will get easier and make sense.

BlackZzzverrR [31]2 years ago

5 0

Answer: you start with a -13 right? well then you add a positive 20 which will then equal to 7 if you were adding a -20 then you get -33

Step-by-step explanation:

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3 years ago

A new restaurant is attracting customers with searchlights has a radius of 2 feet. What is the searchlights circumference?

Assoli18 [71]

Answer:

12.56 feet

Step-by-step explanation:

The perimeter of a shape is the sum of all its side.

Since circle doesn't have "sides", the perimeter is the length of the whole circle. This has the name "circumference".

The circumference of a circle has the formula:

$C=2\pi r$

Where

C is the circumference (perimeter of a circle)

r is the radius

Given,

r = 2 feet

We substitute and find the circumference, using 3.14 as $\pi$ ,

$C=2\pi r\\C=2(3.14) (2)\\C=12.56$

Hence, the circumference is 12.56 feet

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3 years ago

There are two bowls. One of them has 60 gems and the other has 40 gems. Some of them are red. All the gems from the two bowls ar

uranmaximum [27]

Answer:

60/40

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3 years ago

30 points if I had 125 quarter how much money I would have

inna [77]

Answer:

$31.25

Step-by-step explanation:

125 divided by 4 = 31.25

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2 years ago

Read 2 more answers

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sdas [7]

Answer:

5089.4cm³ (rounded to 1 d.p.)

Step-by-step explanation:

Volume of cylinder = $\pi$ × r² × h

Volume of cylinder = $\pi$ × 9² × 20

= 1620 $\pi$

= 5089.4cm³ (rounded to 1 d.p.)

4 0

2 years ago

When you have -13+20 how exactly did you get 7?​

When you have -13+20 how exactly did you get 7?