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tresset_1 [31]
3 years ago
9

Please help ASAP ill give you brainiest :c

Mathematics
2 answers:
belka [17]3 years ago
8 0

Answer:

Jan earns $4 more per hour than Eli

Step-by-step explanation:

Jan has $24 every 4 hours while Eli only has $20 every 4 hours

jarptica [38.1K]3 years ago
7 0

Answer:

Jan earns 1$ more per hour than Eli

Step-by-step explanation:

If you divide Eli's 20$ by 4 hours you get 5. This means Eli makes 5 dollars every hour.

To find Jans earning,you need to look at the graph where the 1 on thebotton meets up with the first number on the left which is 6. That shows how the firat hour Jan makes 6. I hope I helped!

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When solving for y in a equation what is the answer to 5x-3y=21​
masha68 [24]

Answer:

y=53x-7

Step-by-step explanation:

5x-3y=21

-3y=-5x+21

divide by 3

y=5/3x-7

4 0
3 years ago
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Kayla was at the surface of a swimming pool and recorded the following two measurements, in feet, on a number line: −9, which re
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A) 0 represents the surface of the pool.
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4x find the degree with steps​
Alex787 [66]

9514 1404 393

Answer:

  1

Step-by-step explanation:

The term has 1 variable, which has no exponent shown. When the exponent is not shown, it is understood to be 1. The degree of the term is the exponent of this single variable, so the degree is 1.

_____

<em>Additional comment</em>

If the term is a product of more than one variable, the degree is the sum of their exponents.

3 0
2 years ago
Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3
Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

\displaystyle \rho=\frac{m}{V}

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

m=\rho.V

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3

Calculating:

V=523.6\ cm^3

The mass is:

m=8.09 gr/cm^3 \cdot 523.6\ cm^3

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

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