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3 years ago

Help mesothelioma this pleaseeee

Mathematics

1 answer:

marta [7]3 years ago

5 0

For this question I think the answer would be a :)

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Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their age

lana [24]

Answer:

Present Time

Let X= Eric's age (4/5)X= Seth's age

Question: What are their ages now?________________________________________________________________________

Past (21 years ago)

X-21 =Eric's age (4/5)X-21=Seth's age

2*[4/5(X-21]=Eric's age

Therefore, X-21= 2*[4/5(X)-21]=Eric's age Substitution

_______________________________________________________________________

X-21= 8/5 X - 42 Solve for "X" by adding 42 to both sides.

X-21+42=(8/5) X

X+21 = (8/5)X Subtract "X" from both sides.

21=(3/5)X Multiply both sides of equation by reciprocal of (3/5), which is 5/3

21*(5/3)= X Finish the problem to find value of "X," which is Eric's age.

Then find 4/5 (X)= Seth's age

8 0

2 years ago

Read 2 more answers

Write the expression that shows 3 times the sixth power of 10.

Anastasy [175]

This will be 3 * 10^6. =)

7 0

3 years ago

Read 2 more answers

Linda saw an alligator in the zoo. Dylon told her he had seen an

lubasha [3.4K]

Answer:

Step-by-step explanation:

12-3=9

if dylon saw a 12 foot alligator that was 3 feet longer than the one linda saw to find out how long the alligator linda saw is, subtract the difference from the longer one12-3=9

8 0

3 years ago

If ab = c - d, which of the following is an expression for d in terms of a, b, and c?

horsena [70]

ANSWER

$d = - ab + c$

EXPLANATION

The given expression is

$ab = c - d$

To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.

This means that, we need to isolate d on one side of the equation while all other terms are on the other side.

We subtract from both sides of the equation to obtain,

$ab - c = - d$

We now divide through by -1, to get,

$- ab + c = d$

Or

$d = - ab + c$

The topic is change of subject

3 0

3 years ago

How to solve 1/5(x+10)=5x+25

Vadim26 [7]

X=- 115/24
hope this helps :)

5 0

3 years ago