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3 years ago

Use absolute value to express the distance between −12 and −15 on the number line.

Mathematics

2 answers:

Maurinko [17]3 years ago

4 0

I am sorry math is not my strong suit

adell [148]3 years ago

4 0

Answer: |−12 − (−15)| = 3

Step-by-step explanation: Hope this helps you.

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When Sandy and Allen's mother decorates the house for a holiday by herself, it takes her 5 hours. When both Sandy and Allen help

notsponge [240]

Answer:

Step-by-step explanation:

Mother=5hrs

Sandy and Allen and mother=2.5

Allen with mother=3.5

It would take sandy 5hrs coz she decorates the house herself so if u think logically it took her mother 5 hrs so it would take her.Coz its only her doing it no one else is helping!

6 0

3 years ago

The function of a line is y= 3x + 2. What would the slope of its perpendicular be?

Bogdan [553]

Answer:

-1/3

Step-by-step explanation:

Perpendicular slope=negative reciprocal

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3 years ago

What is the number in the * cell? 9 38 47 4 6 35 42 * 12 21 23 27?

Effectus [21]

Answer:

-5

Step-by-step explanation:

Since,there are twelve digits given, we can arrange them in such a way that they make three rows.

On subtracting the second row from the first row, we have

3,3,5,4, the first three digits of these numbers are equal to the sum of the first three numbers in the third row. With the help of this, the answer will b -5.

8 0

3 years ago

Two families visit a zoo. The entrance charge for adults and children aged 16 or over is £x. The entrance charge for children ag

miskamm [114]

(1) 3x + 2y = 51
(2) 2x + 4y = 54
2*(1) 6x + 4y = 102
2*(1)-(2) 4x + 0y = 48
Divide by 4: x = 12
y = 7.5

6 0

4 years ago

Cora is building towers of two different sizes using prism- and pyramid-shaped blocks. The diagram shows the ratio of prisms and

Musya8 [376]

There are 20 blocks needed for tower A, and 43.75 blocks needed for tower B

From the tape diagrams, we have the following ratio

Prism : Pyramid = 4 : 1

From the table, we have:

Tower A = 16 prisms

So, the ratio becomes

16 : Pyramid = 4 : 1

Multiply the ratio on the right-side by 4

16 : Pyramid = 16 : 4

By comparison, we have:

Pyramid = 4

This means that, 4 pyramid blocks are needed for tower A

So, the total number of blocks needed is:

Total = Pyramid + Prism

This gives

Total = 4 + 16

Evaluate the sum

Total = 20

Hence, there are 20 blocks needed for tower A

For table B, we have:

Tower A = 35 prisms

So, the ratio becomes

35 : Pyramid = 4 : 1

Express as fractions

$\frac{Pyramid}{35} = \frac 14$

Multiply through by 35

Pyramid = 8.75

This means that, 8.75 pyramid blocks are needed for tower B

So, the total number of blocks needed is:

Total = 8.75 + 35

Evaluate the sum

Total = 43.75

Hence, there are 43.75 blocks needed for tower B