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eduard
2 years ago
8

Select the correct answer.

Mathematics
1 answer:
fenix001 [56]2 years ago
7 0

Answer:

B

Step-by-step explanation:

substitute

6+4=10

12-3=9

4-9=-5

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Suppose that a large pumpkin empty a swimming pool in 40 hours and that a small pumpkin empty a pool and 70 hours working togeth
Norma-Jean [14]

Answer:

Total 25.45 hours will be taken to empty the pool.

Step-by-step explanation:

Time taken by large pumpkin to empty the pool=40 hours

Time taken by the smaller pumpkins to empty the pool=70 hours

Amount of pool emptied by large pumpkin in one hour=\frac{1}{40}

Amount of pool emptied by small pumpkin in one hour=\frac{1}{70}

Amount of pool emptied in one hour if both pumpkins work together=

\frac{1}{40}+ \frac{1}{70}

=\frac{11}{280}

Therefore, the no. of days will be the reciprocal of the amount of work done in one hour ie . \frac{280}{11}

Total 25.45 hours will be taken to empty the pool.

5 0
3 years ago
During gym class, Alexis played dodgeball for 34 hour.
IRISSAK [1]

the soultion in 20

Step-by-step explanation:

first get the 34 hour of dogeball and get the 14 hour of basketball subtract 34 - 14 first 4 - 4 = 0 then 30 - 10 = 20

6 0
3 years ago
Read 2 more answers
Using suitable identity find 231^222-131^2​
Sliva [168]

Given:

Consider the expression is

231^2-131^2

To find:

The value of given expression using a suitable identity.

Solution:

We have,

231^2-131^2

Using the identity a^2-b^2=(a-b)(a+b), we get

231^2-131^2=(231-131)(231+131)

231^2-131^2=(100)(362)

231^2-131^2=36200

Therefore, the value of the given expression is 231^2-131^2=36200.

7 0
3 years ago
Two angles are supplementary. The first angle measures 60°. What is the measurement of the second angle?
sp2606 [1]
Supplementary angles add up to 180 degrees.

so if one angle is 60 degrees, then the other angle is (180 - 60) = 120 
8 0
3 years ago
What is the measure of angle B in the figure below?
gizmo_the_mogwai [7]

Answer:

It's 45 degrees on edgen

Step-by-step explanation:

and whichever dumb b&tch deleted my comment, please stop riding my d&ck so hard<3 thanks

7 0
3 years ago
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