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3 years ago

The sum of two numbers is 21.

Mathematics

2 answers:

mafiozo [28]3 years ago

7 0

Answer:

Pretend that x and y represents the 2 numbers that we need to find.

According to the information, we know that:

x + y = 21

6x = y

Replace y in the first equation with 6x (because they are equal to each other according to the second equation):

x + y = 21

x + 6x = 21

7x = 21

x = 21/7 = 3

Now have two ways to find y, both will give us the same result:

3 + y = 21 ⇔ y = 21 - 3 = 18

6 · 3 = y ⇔ y = 18

So the numbers that we need to find are 3 and 18.

klio [65]3 years ago

7 0

Answer:

3 and 18.

Step-by-step explanation:

If one number is x then the other is 6x.

So, x + 6x = 21

7x = 21

x = 3.

The other number is 21 - 3 = 18.

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A mechanic makes $350 /week. If 20% of his income is deducted for taxes, how muchd id the mechanic bring home as pay?

klemol [59]

Answer:

$280

Step-by-step explanation:

Step one

Given data

A mechanic makes $350 /week

20% of his income is deducted for taxes

Required

the mechanic's take-home pay for the week

Step two:

let us find 20% of $350

=20/100*350

= 0.2*350

=$70

Therefore the take-home pay is

= 350-70

= $280

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3 years ago

Don’t know how it looks hope it’s better

sveticcg [70]

Answer:

80 ounces

Step-by-step explanation:

In one pint, there is 16 ounces. Thus, if she picked five pints, 16 × 5 = 80 ounces.

Another way to solve this problem is by setting a proportion.

$\frac{2cups}{1pint} = \frac{10cups}{5pints}$
$\frac{8ounces}{1cup} \frac{80ounces}{10cups}$

Therefore, the answer is 80 ounces.

3 0

2 years ago

PLEASE HELP with the question 7

sergey [27]

Answer:

4.8 miles per hour.

Step-by-step explanation:

12:2.5

2.5/2.5=1

12/2.5=4.8

3 0

3 years ago

Please help quickly, if someone answers quickly I'll give them Brainly.

denis-greek [22]

1. A

I hope this helped! This is because the division of numbers and factors are equal to this.

6 0

3 years ago

Read 2 more answers

Based on the order of operations, which is the first step in simplifying this expression? 9 + 5 x 2(20/4 - 2 + 1)

Leto [7]

Answer:

(Parentheses) P.E.M.D.A.S
Exponents(^)
Multiply(X)
Division(/)
Addition(+)
Subtraction(-)

Step-by-step explanation:

First simplify (20/4-2+1)=

9+5x2(4)=

then simplify again

14x8=112

simplify one more time and you get your answer.

122 is your answer.

So to answer the real question start with parentheses first then work and simplify the equation.

<u><em>Please give brainliest if you found this answer to be helpful!</em></u>

4 0

2 years ago