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alexandr1967 [171]
3 years ago
7

PLEASE HELP QUICK THANK YOU

Mathematics
1 answer:
Irina18 [472]3 years ago
3 0

Answer:

a. 1/4

Step-by-step explanation:

3r=12p

<em>Divide the left side by 12 to get 1 cup of pineapple juice.</em>

3r=12p

     ----  = p

      12

<em>So now you have</em>

3r=p

<em>BUT you have to divide BOTH sides by 12 so</em>

3r=p

---

12

<em>NOW you have</em>

3/12 r = p

<em>Simplify.</em>

1/4r = p

So 1 cup of pineapple juice is equivalent to a quarter cup of orange juice!

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How many gallons of a 90% antifreeze solution must be mixed with 90 gallons of 20% antifreeze to get a mixture that is 80% antif
lozanna [386]

Answer:

540

Step-by-step explanation:

Amount of antifreeze in the 90% solution + amount of antifreeze in the 20% solution = amount of antifreeze in the 80% solution

0.90 x + 0.20 (90) = 0.80 (x + 90)

0.90 x + 18 = 0.80 x + 72

0.10 x = 54

x = 540

You need 540 gallons of 90% antifreeze solution.

7 0
3 years ago
In Triangle ABC, AC is extended through C to D. If
DENIUS [597]

Answer:

X  = 5 unit

Step-by-step explanation:

Given as , ABC is a Triangle ,

AC extended to through C to D

∠BAC = 6x + 10

∠ABC = 6x - 10

∠BCD = ∠ 8x + 20

When c extended to D then , ∠BCD is an external angle

∵ <u>External angle = Sum of opposite internal angles</u>

Or ,∠BCD = ∠BAC + ∠ABC

Or, ∠ 8x + 20 = 6x + 10 + 6x - 10

Or, ∠ 8x + 20 = 12x

Or, 12x - 8x = 20

∴ 4x = 20

So, x = \frac{20}{4} = 5

Hence the value of X = 5  unit  Answer

8 0
3 years ago
Complete the following sentences: 7. In 49 is the base and is the exponent. 8.72 is the exponential form of 7*___ Rewrite each o
serg [7]

Answer:

the 4 is the base and the 5 is the exponent

7^2 is the exponential form of 7*7

10^2

5^4

8 0
2 years ago
Simplify fully <br>2/(5x)+2x/3<br>​
lara31 [8.8K]

Answer:

16x / 15

Step-by-step explanation:

2/5x + 2x/3

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7 0
3 years ago
3² - 4 . (-1) . (-4) = ?
maria [59]
3x3 -4= 5 5(-1)= -5 -5(-4)= 20
5 0
3 years ago
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