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tangare [24]
2 years ago
8

How you solve 7p+9=81

Mathematics
2 answers:
Burka [1]2 years ago
7 0
Try and get the variable by its self by -81 from both sides then divide it by 7 and get ur answer.

spin [16.1K]2 years ago
5 0
7p + 9 = 81  // -9
7p  = 72 // :(7)
p = 10 and 2/7              (10,286)
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Using the guess and check technique, find two numbers that satisfy both conditions.
maksim [4K]

Answer:

B.

Step-by-step explanation:

21 X 2 = 42

42-7 = 35

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7 0
2 years ago
Read 2 more answers
Sally can detail a car in 50 minutes. Manny does the same job in 35 minutes. How long will it take them to detail a car working
Debora [2.8K]

<u>Answer:</u>

Both Sally ans Manny can detail a car in 20.6 min.

<u>Solution: </u>

Let us assume that together they will take total x minutes to detail the car.

Sally detail the car in 50 min.

So in 1 min sally can detail \left(\frac{1}{50}\right) of the car.

Hence in x min sally can detail \left(\frac{x}{50}\right) of the car.

Manny can detail a car in 35 min.

So in 1 min many can detail \left(\frac{1}{35}\right) of the car.

Hence in x min Manny can detail \left(\frac{x}{35}\right) of the car.

So we can say,

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x=\left(\frac{350}{17}\right)=20.5 8\approx 20.6

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3 0
3 years ago
How do you find the lease common fatcor
8_murik_8 [283]

Answer:

One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.


Step-by-step explanation:


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3 years ago
a 14 ounce energy drink contains 10 1/2 teaspoons of sugar. How much sugar is in one ounce of the drink?
Y_Kistochka [10]
In this case u need to divide 10 1/2 by 14 coz theres 14 ones in 14
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5 0
3 years ago
Jake rewrites the expression 81x2 – 1 as a difference of squares so he can factor it. Which answer choice shows how Jake could r
patriot [66]
Letter B
Different of 2 squares
(9x-1)(9x+1)
3 0
2 years ago
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