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satela [25.4K]
3 years ago
15

Bill scored 78, 63, 81, 86, and 74 on the first five math tests. Round each score to the nearest 10 to find an estimate of the t

otal points Bill scored. A. 320 B. 340 C. 360 D. 380\
Mathematics
2 answers:
telo118 [61]3 years ago
4 0

Answer:

D. 380

Step-by-step explanation:

Round all test results to the nearest ten.

78 -> 80

63 -> 60

81 -> 80

86 -> 90

74 -> 70

--

Add the numbers together.

80+60+80+90+70=380

The total points Bill scored is <u>380.</u>

shutvik [7]3 years ago
4 0

Answer:

The answer is D

Step-by-step explanation:

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1 kilogram
vlabodo [156]

Answer:

True

Step-by-step explanation:

For every kilogram, there are 1000 grams

3 0
3 years ago
Are expressions equivalent to 3(62)?
Brrunno [24]

Answer:

186

Step-by-step explanation:

4 0
2 years ago
EFV and EDW are straight lines.<br>Find the value of x and of y.​
Makovka662 [10]

Answers:

x = 72

y = 83

============================================================

Explanation:

Angle VFG is 50 degrees. The angle adjacent to this is angle EFG which is 180-50 = 130 degrees.

Angle HDW is 77 degrees. The supplementary angle adjacent to this is 180-77 = 103 degrees which is angle EDH.

Pentagon EFGHD has the following five interior angles

  • E = x
  • F = 130
  • G = 170
  • H = 65
  • D = 103

Note that angles F = 130 and D = 103 were angles EFG and EDH we calculated earlier.

For any pentagon, the interior angles always add to 180(n-2) = 180(5-2) = 180*3 = 540 degrees.

This means,

E+F+G+H+D = 540

x+130+170+65+103 = 540

x+468 = 540

x = 72

---------------------------------------

Now focus your attention on triangle THS

We see that the interior angles are

  • T = y
  • H = 65
  • S = 32

The angle H is 65 degrees because it's paired with the other 65 degree angle shown. They are vertical angles.

For any triangle, the angles always add to 180

T+H+S = 180

y+65+32 = 180

y+97 = 180

y = 180-97

y = 83

7 0
3 years ago
What is -1/6 multiplied by 6
Tems11 [23]

Answer:

-1

Step-by-step explanation:

<u>Step 1:  Multiply </u>

-\frac{1}{6} * \frac{6}{1}

-\frac{1*6}{6*1}

-\frac{6}{6}

-1

Answer: The correct answer is -1

4 0
3 years ago
Please answer correctly! I will mark you as Brainleist!
kiruha [24]

Answer:

V ≈ 1847.26

Step-by-step explanation:

<u>Circular Cone Formulas in terms of radius r and height h:</u>

The volume of a cone:

V = (1/3)πr2h

Slant height of a cone:

s = √(r2 + h2)

Lateral surface area of a cone:

L = πrs = πr√(r2 + h2)

The base surface area of a cone (a circle):

B = πr2

The total surface area of a cone:

A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

Therefore, the solution V = πr 2h / 3 = π·142·9/  3 ≈ 1847.25648

4 0
3 years ago
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