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lesya [120]
3 years ago
7

79 to 65 what percent

Mathematics
1 answer:
alexandr402 [8]3 years ago
7 0

Answer:

121.53% as we do the following

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Consider the equation 5-3(2x - 7) = 12-5(x - 2). Is x = 2 a solution to this equation? Is x = 4 a solution to this equation? Exp
mario62 [17]

Answer:

x=4

Step-by-step explanation:

5-3(2x-7)=5-6x+21=-6x+26

--------------------------------------

12-5(x-2)=12-5x+10=-5x+22

--------------------------------------

-6x+26=-5x+22

-6x-(-5x)=22-26

-6x+5x=-4

-x=-4

x=4

8 0
3 years ago
Marilyn has a bag of coins. The bag contains 25 wheat pennines, 15 Canadian pennies, 5 steel pennies, and 5 Lincoln pennies. She
goldfiish [28.3K]

Answer:

a.) 10% is correct. If you add them all together it's 50 pennies. Lincoln and steel pennies equal 10 and 10 of 50 is 10%

7 0
4 years ago
Read 2 more answers
Twenty seven pears are packed in bags of three. Five bags of pears are sold. How many pears are left
aliya0001 [1]

Answer:

Pears\ Left = 12

Step-by-step explanation:

Given

Pears = 27

Bags\ Sold = 5

Required

Determine the number of bags sold

First, we need to determine the number of bags for 27 pears;

Since they are packed in 3s

Bags = 27/3

Bags = 9

Hence:

9 bags were used for 27 pears;

After 5 bags were sold, we have:

Bags\ Left = 9 - 5

Bags\ Left = 4

Recall that the pears are packed in 3s

So:

Pears\ Left = 4 * 3

Pears\ Left = 12

4 0
4 years ago
A scalene triangle has the lengths 6, 11, and 12. Keyla uses the law of cosines to find the measure of the largest angle. Comple
ss7ja [257]

Answer:

Y\approx 84^\circ $(to the nearest angle)

Step-by-step explanation:

The lengths of the sides of the scalene triangle are 6, 11, and 12.

We want to use the law of cosines to find the largest angle.

Note that the largest angle is always opposite the largest side.

Therefore:

1. 12^2 = 11^2 + 6^2-2(11)(6)\cos(Y) \\\\2. 144 = 121 + 36-(132)\cos(Y) \\\\3. 144 = 157 - (132)\cos(Y) \\\\4. -13 = -(132)\cos(Y)\\\\\\5. \cos(Y) = \dfrac{-13}{-132} \\\\6. Y = \arccos \left ( \dfrac{13}{132}\right)\\\\7. Y=84.35^\circ\\\\8. Y\approx 84^\circ $(to the nearest angle)

The largest angle is 84 degrees to the nearest angle.

3 0
4 years ago
Help <br> I need help can some help me!! I give you
djyliett [7]

Answer:

x=6

Step-by-step explanation:

its an equilateral triangle so all sides are the same measure

9=3x-9

18=3x

x=6

5 0
3 years ago
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