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3 years ago

3.7+6=. A:-1. B:1. C:13 D:-13

Mathematics

2 answers:

zavuch27 [327]3 years ago

8 0

Answer:

Step-by-step explanation:

when you add 3 and 7 you would get 13 so therefore C is your correct answer

stepan [7]3 years ago

5 0

Answer:

13 is the answer

Step-by-step explanation:

You simply add 6 to 7 and get a positive 13.

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Complete the statements about these similar pyramids.

baherus [9]

A ratio shows us the number of times a number contains another number. The ratio of the sides, base area, and volume are equal to 3:1, 9:1, and 27:1, respectively.

<h3>What is a Ratio?</h3>

A ratio shows us the number of times a number contains another number.

Given the two lateral sides of the pyramids, therefore, the ratio of the sides of the pyramid can be written as,

Length of pyramid A: Length of pyramid B = 15:5 = 3:1

Let the length of the base of the pyramid is represented by a.

The ratio of the base area can be written as,

Area of Base of A: Area of base of B = (3a)²:a² = 9:1

The ratio of the volume can be written as,

Volume of A: Volume of B = (3l×3b×3h)/3 : (lbh)/3 = 27:1

Hence, the ratio of the sides, base area, and volume are equal to 3:1, 9:1, and 27:1, respectively.

Learn more about Ratios:

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7 0

2 years ago

Can someone explain to me how to solve this equation<br>15x +-6 = 8

soldier1979 [14.2K]

Answer:

x=0.933333

Step-by-step explanation:

First you add 6 to both sides of the equation

15x - 6 + 6 = 8 +6

That gives you 15x = 14

Then you divide 15 on both sides of the equation

That gives you x = 14/15 = 0.93333

8 0

4 years ago

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Serga [27]

Answer:

divide 81 by pi and then by 2

Step-by-step explanation:

6 0

3 years ago

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Name the quadrilaterals that have four equal angles.

Alex73 [517]

B. square, rectangle

7 0

3 years ago

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What is the value of x?<br><br><br><br> Enter your answer in the box.

Grace [21]

The shapes are similar.
When two figures are similar, the ratios of the lengths of their corresponding sides are equal.
Therefore,
$\frac{42}{(15 + 42)} = \frac{x}{10 + x}$

Simplify:
$\frac{42}{57} = \frac{x}{10 + x}$
Cross multiply:
42(10+x) = 57x
420 + 42x = 57x
420 = 57x - 42x
420 = 15x
x = (420÷15)
x = 28

3 0

3 years ago