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2 years ago

Help! which one is it? I'm confused! :(

Mathematics

2 answers:

disa [49]2 years ago

6 0

Answer:

its D

Step-by-step explanation:

x+2x=90-45

3x=45

Paraphin [41]2 years ago

3 0

Answer:

D is the answer

Step-by-step explanation:

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PLS HELP I WILL AWARD BRANLIEST

sveticcg [70]

Answer:

x = 14

2x = 28

6x = 84

Step-by-step explanation:

6x = 180 - 124 + 2x

4x = 56

x = 14

7 0

2 years ago

A healthy human heart beats about 1,533,000 times a year. A sparrow's heart beats about 241,776,000 times in a year. About how m

Galina-37 [17]

Answer:

About 158 times

Step-by-step explanation:

Represent the rate of human heart with H and sparrow's heart with S

$H = 1,533,000\ times$

$S = 241,776,000\ times$

Required

Determine how many times faster is S than H

To do this, we simply divide S by H i.e.

$Number = \frac{S}{H}$

$Number = \frac{241,776,000}{1,533,000}$

$Number = 157.714285714$

$Number = 158$ --- approximated

<em>Hence, the sparrow's heart beats about 158 times faster than the human hearts</em>

5 0

2 years ago

How are the surface area and volume of a rectangular prism related to each other?

MatroZZZ [7]

The surface area of a rectangular prism is equal to the volume of a rectangular prism on their cooresponding sides.

7 0

3 years ago

PLEASE help due today Geometry

irina1246 [14]

$\\ \sf\Rrightarrow \dfrac{15}{20}=\dfrac{21}{28}$

$\\ \sf\Rrightarrow \dfrac{1}{4}=\dfrac{1}{4}$

Hence they are similar

<A=<H
And ratio of sides are same

Hence both triangles are similar by SAS property

$\\ \sf\Rrightarrow ∆KDH\sim ∆ABD$

8 0

2 years ago

Which is greater 78.61 or78.6

ANTONII [103]

Answer:

78.61 is greater than 78.6.

Step-by-step explanation:

Adding a zero to 78.6, resulting in 78.60, makes it easier to compare 78.6 and 78.61. 78.61 is greater than 78.6.

7 0

3 years ago