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3 years ago

Question 10 of 10

Mathematics

1 answer:

Zanzabum3 years ago

3 0

$x = \frac{2}{a}$

Step-by-step explanation:

3 ax + 4ax = 5ax + 4, combine like terms

7ax = 5ax + 4, minus 5ax from both sides

2ax = 4, divide 2a on both sides

you'll be left with x = 2/a

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A square has a side length 9cm . What is its area?

Leya [2.2K]

Answer:

81 cm^2

Step-by-step explanation:

1. The area of a square is s^2, where s = length of side. In this case, s = 9.

$9^2$
$9 * 9$
$81$

Therefore, the area is 81 cm^2.

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3 years ago

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Mr.jonson sells erasers for $3 each.He sold 96 erasers last week and he sold 204 erasers this week.About how much more money did

7nadin3 [17]

Answer: About $300

Step-by-step explanation:

1. To solve this problem and estimate how much more money Mr. Johnson made this week (which you can call x) you must apply the proccedure shown below:

- Round the number of erasers sold:

96 erasers≈100 erasers

204 erasers≈200 erasers

- The amount of money made last week is:

$\$3*100=300\$$

- The amount of money made this week is:

$\$3*200=600\$$

- Now, you must subtract the quantities shown above, then you obtain:

$m=\$600-\$300\\m=\$300$

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4 years ago

A line has a slope of

mojhsa [17]

Answer:

b = 3/4

Step-by-step explanation:

Using point slope: y - y1 = m(x - x1).

Substitute your given slope, given point, and subsitute 0 in for x and solve for y since the y intercept is the y value when x = 0.

0.2 = 1/5, so 1/5 * 1/4 = 1/20

Therefore: y - 4/5 = 1/4(0 - 0.2) → y - 4/5 = -1/20 → y = 4/5 - 1/20 → 15/20 → <em>3/4</em>

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4 years ago

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Solve the equation -10(d + 1) = -14.<br> d=<br> ?

sashaice [31]

Answer:

d = 0.4

Step-by-step explanation:

Given

- 10(d + 1) = - 14 (divide both sides by - 10 )

d + 1 = 1.4 ( subtract 1 from both sides )

d = 0.4

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3 years ago

Someone help me please

gtnhenbr [62]

1 is 34.5 and 2 is 71. hope it helps:)

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3 years ago