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Diano4ka-milaya [45]
3 years ago
7

What's the answer to this question?

Mathematics
1 answer:
laiz [17]3 years ago
4 0
Area  = 1/2 h(b + B)
1/2.10.(b + 12) = 100
5(b + 12) = 100
b + 12 = 100 ÷ 5
b + 12 = 20
b = 20 - 12
b = 8
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Simplify: 4^8/4^-4<br> A 4^-32<br> B 4^-2<br> C 4^4<br> D 4^12
gulaghasi [49]
The answer is B
I know this because 8 divided by -4 =-2
Therefore the answer is: B
7 0
3 years ago
55÷ =5 what is answer​
Andru [333]

Answer:

The answer is 11

Step-by-step explanation:

55÷5= 11

7 0
3 years ago
What number n is four times as close to 10 as it is to2?
pickupchik [31]

Answer:

I think 3.

Step-by-step explanation:

3*4=12 near 10

5 0
2 years ago
Alex has 84 quarters and nickels worth a total of $17.80.
Hunter-Best [27]

The equation which can be used to find the number of quarters and nickels is; n + q = 84, 0.05n + 0.25q = 17.80.

<h3>Quarters and nickels</h3>

  • Total coins = 84
  • Total value = $17.80

let

  • Number of quarters = q
  • Number of nickels = n

n + q = 84

0.05n + 0.25q = 17.80

From equation (1)

n = 84 - q

Substitute into (2)

0.05n + 0.25q = 17.80

0.05(84 - q) + 0.25q = 17.80

4.2 - 0.05q + 0.25q = 17.80

- 0.05q + 0.25q = 17.80 - 4.2

0.20q = 13.60

q = 13.60 / 0.20

q = 68

Substitute q = 68 into

n + q = 84

n + 68 = 84

n = 84 - 68

n = 16

Therefore, the number of quarters and nickels are 68 and 16 respectively.

Learn more about quarters and nickels:

brainly.com/question/17127685

#SPJ1

6 0
2 years ago
Pls help!!!
natka813 [3]

Answer:

The area of the base B is equal to 770\ cm^{2}

The volume  is equal to 10,087\ cm^{3}

Step-by-step explanation:

I will proceed to resolve the problem indicated in the attached figure.

The figure shown a inverted rectangular pyramid

The base is a rectangle

The area of the base B is equal to

B=(35)(22)=770\ cm^{2}

To find how many cubic centimeters of titanium are needed to manufacture one tip, calculate the volume of the figure

<em>Find the volume of the inverted rectangular pyramid</em>

The volume of the pyramid is equal to

V=\frac{1}{3}BH

we have

B=770\ cm^{2}

H=39.3\ cm

substitute

V=\frac{1}{3}(770)(39.3)=10,087\ cm^{3}

5 0
3 years ago
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