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MArishka [77]
3 years ago
8

X - 15 = -20 please show work

Mathematics
2 answers:
dem82 [27]3 years ago
7 0
Plus 15 on both sides then x is -20 + 15 which is -5. So x is -5.
Natasha2012 [34]3 years ago
5 0

Answer:

x = -5

Step-by-step explanation:

x - 15 = -20

  + 15  + 15

x = -5

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Find the surface area of the pyramid shown to the nearest whole number.
Snezhnost [94]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Surface area of a pyramid =

area of base + area of triangular faces

Since it's a square based pyramid

It's surface area is

area of base + 4( area of one triangular face)

Since the square has equal sides

<u>For square base </u>

Area of a square = l²

where l is the length

From the question l = 5

So we have

Area of square base = 5² = 25ft²

<u>For one of the triangular face</u>

Area of a triangle = ½ × base × height

base = 5

height = 6

Area = ½ × 5 × 6 = 15ft²

So the surface area of the pyramid is

25 + 4(15)

= 25 + 60

We have the final answer as

<h3>Surface area = 85 ft²</h3>

Hope this helps you

7 0
3 years ago
A store sells small notebooks for $7 and large notebooks for $10 if a student buys 6 notebooks and spends $51 how many of each s
Finger [1]
He bought 3 small notebooks (3*7=21) and 3 large notebooks (3*10=30)
21+30=51
5 0
3 years ago
Read 2 more answers
Evaluate the expression three squared times five cubed.
Margaret [11]

Answer:

<em>The expression is equivalent to 1,125</em>

Step-by-step explanation:

<u>Arithmetic Expressions</u>

It's given the word expression: "three squared times five cubed". It can be written in math form as:

3^2\times 5^3

Expanding the powers:

3^2\times 5^3=3*3*5*5*5 = 1,125

The expression is equivalent to 1,125

7 0
3 years ago
C = .25t +3.50 in 'C' dollars for 't' minutes. How much does it cost to rent the canoe for 1 hour?​
yKpoI14uk [10]

Answer and Step-by-step explanation:

We know that t is in minutes, and 1 hours is equal to 60 minutes, so we plug in 60 for t.

C = 0.25(60) + 3.50

C = 15 + 3.50

C = 18.50

<em><u>The cost to rent the canoe is $18.50.</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

8 0
3 years ago
Read 2 more answers
In a carnival game, there is a 45% probability of winning a prize. Which of the following is true.
JulsSmile [24]
Ok, here is what I got:
<span>9/20 is .45 so D is right for sure. C is also correct since the remaining % is 55 ( meaning the percent you won't win) this is also the same as A which is 11/20 or .55. again meaning that .55 is the probability that you won't win. I hope this helps!</span>
7 0
3 years ago
Read 2 more answers
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