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GalinKa [24]
3 years ago
6

What is the equation for 8= a-2

Mathematics
1 answer:
xenn [34]3 years ago
7 0

Since we know that a - 2 will equal 8, it is safe to assume that 8 + 2 = 10. Therefore a=10.

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Only 23 out of 50 people in the class passed the exam. What percent of the class passed the exam?
Black_prince [1.1K]

Answer:

46%

Step-by-step explanation:

For percents, we want to make the number out of 100.  23/50 is the same as 46/100.  From fraction knowledge, 46/100 is 46%.

5 0
3 years ago
Read 2 more answers
Jaime has 5 over 11 spaceof a project completed while Tim has finished 7 over 13 spaceof the same project.
faust18 [17]

Answer:

a. Tim has completed a greater amount of work.

b. Together they have completed \frac{142}{143} part of two projects.

Step-by-step explanation:

Let us assume that the project on which Jaime and Tim are working has x amount of space.

Now, given that Jaime has 5 over 11 space of a project completed while Tim has finished 7 over 13 space of the same project.

Therefore, Jaime has completed \frac{5x}{11} amount of space and Tim has finished \frac{7x}{13} amount of space.

a. Now, (7x) \times 11 > (5x) \times 13

⇒ \frac{7x}{13} > \frac{5x}{11}

Therefore, Tim has completed the greater amount of work. (Answer)

b. Together they have completed (\frac{7x}{13} + \frac{5x}{11}) = \frac{(7 \times 11 + 5 \times 13)}{13 \times 11} x = \frac{142}{143}x amount of space out of 2x amount of space. (Answer)

4 0
3 years ago
What is the sum of 2.5 × 104 and 3.4 × 104? (1 point)
Tju [1.3M]

Answer:

5.9× 10^4

Step-by-step explanation:

I'm assuming that by "104" you actually meant "10^4," which reads "fourth power of 10."  Please be sure to use the symbol " ^ " to express exponentiation.

The sum of 2.5 × 10^4 and 3.4 × 10^4 is (2.5 + 3.4)×10^4

or

5.9× 10^4

7 0
3 years ago
Jason earned $54 at his job when he worked for 4 hours. What was his hourly pay rate in hours per dollar?
leva [86]

Answer:

$13.50

Step-by-step explanation:

$54 divided by 4 is $13.50.

6 0
3 years ago
F(x)=x² – 9- indenify zeros of the function​
noname [10]

Answer:3,-3

Step-by-step explanation:

difference of 2 squares

(x+3)(x-3)

x+3=0

x-3=0

x=3,-3

5 0
4 years ago
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