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choli [55]
3 years ago
9

ANSWER PLEASEEE

Mathematics
1 answer:
PtichkaEL [24]3 years ago
5 0

Step-by-step explanation:

-3x+2=11

-3x=11-2

-3x=9

x=9÷(-3)

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Font
balu736 [363]

Answer:

A. 4.2 times

Step-by-step explanation:

Chlorine level of the pool as adjusted by Paula = 6.3 parts per million

Ideal Chlorine level as suggested by the magazine = 1.5 parts per million.

Thus, the number of times the ideal level of Chlorine that the current level is = current level ÷ ideal level

= \frac{6.3}{1.5} = 4.2

The current Chlorine level is 4.2 times the ideal Chlorine level.

7 0
3 years ago
7. Jena has a triangular garden with a perimeter that can be represented by 25r ^ 2 - 9r + 14 . The sum of two sides of the gard
galben [10]

Answer: 15r^2-21r+5

Step-by-step explanation:

Given: Perimeter of triangular garden = 25r^2 - 9r + 14

The sum of two sides of the garden = 10r^2 + 12r + 9

Perimeter is the sum of all sides of a triangle.

Third side = Perimeter of triangular garden - sum of two sides of the garden

=25r ^ 2 - 9r + 14-(10r ^ 2 + 12r + 9)\\\\=25r ^ 2 - 9r + 14-10r ^ 2 - 12r - 9\\\\=15r^2-21r+5

The expression represent the third side = 15r^2-21r+5.

5 0
3 years ago
(-1) + (-7) answer with work shown
lesya [120]
Answer is -8

(-1)+(-7) turns into (1)+(7)=8 and then back to original which will be -8
4 0
3 years ago
-12 + (-3) • 3 - 8 = 4​
mestny [16]

Answer:- 29

false

Step-by-step explanation:

4 0
3 years ago
Alyssa used 12 gallons of white paint for the ceiling of her kitchen and 13 gallons of white paint for her bedroom. She used
Arturiano [62]
She used 10 more gallons of green paint

Hope this helps if it does yourwelcome
6 0
3 years ago
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