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Alborosie
3 years ago
5

Is 5 a solution to 2x + 5 = 15? Yes or No How do you know?

Mathematics
2 answers:
dybincka [34]3 years ago
5 0

Answer:

Step-by-step explanation:

8

tankabanditka [31]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

yes because when you place 5 in the x spot you arrive a final answer of 15=15

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If you are 2.25 feet above water and then dive directly down 3.75 into the water, how deep in the water will you be? Explain.
Aneli [31]
1.5 deep.

you subtract 2.25 of air space from the total depth 3.75

3.75-2.25=1.5
5 0
3 years ago
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It takes Dave's dogs about 20 days to finish a 50-pound bag bag of dog food. which is the best estimate of number of pounds of d
Fynjy0 [20]
The correct answer is C) 900

To begin with, you need to divide the number of days in a year with the number of dogs. When you do this, you multiply it by 50 to get the final answer. In this case, it would be 365 / 20 which when multiplied by 50 gives the number of C) 900 since it's "about" 20 days.
6 0
3 years ago
What is the value of this expression when a = 2 and b = -3 ? a^3 - b^3 / 5
saveliy_v [14]

Answer:

13 2/5

Step-by-step explanation:

a = 2 and b = -3

so the question asks whats.... a^3 - b^3/5

First we plug in the values of a and b

(2)^3 - (-3)^3 /5

Now we solve the ones in paranthesis first

(2)^3 = 8 because 2×2×2 and

-(-3)^3 forget about the - outside the parenthesis so

(-3)^3 = (-27) because (-3)×(-3)×(-3)

now we put it back together

8 -(-27)/5

the two minus become plus so

8 + 27/5

Now we solve it like fractions

8 and 27/5

simplify

13 and 2/5

Hope that helps!

5 0
3 years ago
Expressions. Simplify 2a + 8a
geniusboy [140]
2a+8a
Add 2 and 8.
2a+8a=10a
8 0
3 years ago
Read 2 more answers
Find the value of x and y
djverab [1.8K]

Answer:

x = 8, y = 27

Step-by-step explanation:

Since both opposite lines are equal in length to each other, these opposite lines are parallel to each other.  The top line is parallel and same length as the bottom line and the left and right lines are also parallel and equal in length.

Based on that, the two left side angles must equal 180 and the right side two angles must equal 180.

(2y + 24) + (3y + 21) = 180

That's the same as 2y + 24 + 3y + 21 = 180

Simplify to 5y + 45 = 180

Subtract 45 from both sides

5y = 135

y = 27

(16x - 26) + (9x + 6) = 180

16x - 26 + 9x + 6 = 180

25x - 20 = 180

25x = 200

x = 8

7 0
2 years ago
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