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Vaselesa [24]
3 years ago
11

Maria calculated that she could make $18,000 over the summer. Instead she ended up making 15,000. Calculate the variance.

Mathematics
1 answer:
Luden [163]3 years ago
8 0

Answer:

3000 i think that's the answer.

Step-by-step explanation:

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Math: Problem-Solving with equations.
ivolga24 [154]

Answer:

2s-10

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Need help thanksssssssss
Archy [21]

Answer:

Volume: 112 m³.

Surface area: 172 m².

Step-by-step explanation:

The volume is the base times height times length. So, the volume will be 2 * 8 * 7 = 16 * 7 = 112 m³.

The surface area is 2lw + 2lh + 2wh. l = 8; w = 7; h = 2.

2(8)(7) + 2(8)(2) + 2(7)(2) = 2 * 56 + 2 * 16 + 2 * 14 = 112 + 32 + 28 = 112 + 60 = 172 m².

Hope this helps!

4 0
3 years ago
Conti. 7-10 thanks a lot! <br><br>unhelpful answers will be deleted.​
Marysya12 [62]

Answers:

10. b. \displaystyle 13

9. b. \displaystyle 20

8. a. \displaystyle 33

7. a. \displaystyle 25°

Step-by-step explanations:

10. Both segments are considered congruent, so turn both expressions into an equation:

\displaystyle 3x - 5 = x + 7 \hookrightarrow \frac{-12}{-2} = \frac{-2x}{-2} \\ \\ 6 = x

Plug this back into the equation to get \displaystyle 13on both sides.

9. All edges in a square obtain congruent right angles and edges, so set \displaystyle 45equivalent to the given expression:

\displaystyle 45 = 2x + 5 \hookrightarrow \frac{40}{2} = \frac{2x}{2} \\ \\ \boxed{20 = x}

8. Both angles are considered supplementary, so turn both expressions into an equation and set it to one hundred eighty degrees:

\displaystyle 180 = (4x - 15)° + (x + 30)° \hookrightarrow 180° = (15 + 5x)° \hookrightarrow \frac{165}{5} = \frac{5x}{5} \\ \\ \boxed{33 = x}

7. In this rectangle, segment <em>EO</em><em> </em>is a segment bisectour, making these angles <em>Complementary</em><em> </em><em>Angles</em><em>.</em><em> </em>Therefore, set an equation up to find its complement:

\displaystyle 90° = 65° + m\angle{VOE} \\ \\ \boxed{25° = m\angle{VOE}}

I am joyous to assist you at any time.

3 0
2 years ago
A family of four went to a theme park and spent a total of $480 on tickets, food, and souvenirs. ⅙ of their money spent was for
dmitriy555 [2]

Answer:

$70

Step-by-step explanation:

1 - ⅙ - ¼ = (12 - 2 - 3)/12 = 7/12

7/12 × 480 = 280

280/4 = 70

3 0
3 years ago
Shirley got 72% on a Chemistry exam. The test was marked out of 150.
tensa zangetsu [6.8K]

Answer:

Nhjj

Step-by-step explanation:

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3 years ago
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