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Neporo4naja [7]
3 years ago
10

What is 33 minus thirteen

Mathematics
2 answers:
VMariaS [17]3 years ago
8 0

Answer:

20

Step-by-step explanation:

Shalnov [3]3 years ago
8 0

Answer:

20

Step-by-step explanation:

33 - 13 = 20

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Ben made a model (shown below) of the square pyramid he plans to build when he grows up. Find the surface area of the model.
belka [17]

Answer:

The answer is "240 \ m^2"

Step-by-step explanation:

please find the given diagram image file in the attachment.

In this question, the surface area model includes two things that are square pyramid is equal to the area of the square base and the area of the flour lateral triangle:

SA= 10\times 10 +4 (\frac{1}{2}\times (10) \times (7))\\\\

     = 100 +4 (\frac{1}{2} \times 70)\\\\= 100 +4 (35)\\\\= 100 +140\\\\=240 \m^2\\\\

The surface area of the model is 240 \ m^2.

4 0
3 years ago
A student bought 34 pencils for school.if he sharpened 16 of the pencils before school whats is his ratio of unsharpened pencils
Sergio [31]


he bought 34 pencils which I suppose aren't already sharpened

so if he sharpens 16 of them just subtract 16 from 34 (34-16) which equals 18

so the ratio would be 16:18

but if u need to simplify it would be 8:9

3 0
3 years ago
What is the measurement of each angle​
user100 [1]

Answer:

7(14)-11=87\\\\5(14)-2=68\\\\2(14)-3=25

Step-by-step explanation:

First we need to set up an equation in order to find the value of x. We know that the sum of these angles are 180°

7x-11+5x-2+2x-3=180\\\\14x-16=180\\\\14x=196\\\\x=14

Now we can plug in our value for x into each of the angle's equations

7(14)-11=87\\\\5(14)-2=68\\\\2(14)-3=25

8 0
4 years ago
POINTS!! URGENT! What is the length of ST? Please explain how you got the answer with the steps you did! (: thanks
LuckyWell [14K]
ST^2  = 7 ( 7 + 23)   (   I think its called  the tangent/secant  length theorem)

ST^2 = 210

ST = sqrt 210  = 14.49 to nearest hundredth.
7 0
3 years ago
One pound of ground beef makes four hamburger patties. Solve an equation to determine how many pounds of beef are needed to make
OLga [1]
9 pimds of beef are needed to make 36 hamburgers.
3 0
4 years ago
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