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expeople1 [14]
2 years ago
9

Jamar is four times as old as Josh. In 20 years he will be twice as old as Josh. How old is Jamar?

Mathematics
1 answer:
Juliette [100K]2 years ago
5 0
Simultaneous equations
Jamar=J
Josh=j
4J=j
20+J=2j
Then
4J=j
-4 (J)=-4(2j-20)
So
0=-7j+80
7j=80
j=80÷7
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3.52 in expanded form
Scrat [10]

Step-by-step explanation:

3.52 =

3

+ 0.5

+ 0.02

hopes this helps you

6 0
2 years ago
Solve by factoring.<br><br> m^2+6m+5=0
alina1380 [7]

Answer:

<u>-1 and -5</u>

Step-by-step explanation:

m^2 + 6m + 5 = 0 is factored to: (m + 1)(m + 5) = 0.

The zero product property states that one of the represented parenthesis must equal zero to satisfy the right side of the equation.

(m + 1) = 0

(-1 + 1) = 0

This means that one of the values for m is -1.

(m + 5) = 0

(-5 + 5) = 0

This means that one of the values for m is -5.

<u>Moreover, the value of m by factoring is -1 and -5</u>

3 0
2 years ago
How do you simplify this expression? -12 divided by 3•(-8+(-4)^2-6)+2
stepan [7]

I good accumulator to use would be symbolab.com

The answer would be 3072/5629

5 0
3 years ago
How do you find the constant of variation when y=-(2/3) and x=3
Katyanochek1 [597]
You can't. If you think about the straight line on a graph, those numbers
describe a single point that the line goes through, and they don't tell you
anything about the slope of the line, or where it crosses the x-axis or the
y-axis.  So I don't think you can tell the constant of variation from one point.
6 0
3 years ago
Read 2 more answers
Find the m TFS.<br><br>Answer choices are:<br>12 degrees<br>76 degrees<br>64 degrees<br>52 degrees​
goblinko [34]
It’s 52 because there are two sides with 64 degrees (the bottom two sides) and you add those to sides together and subtract your combine angle of the bottom 2 sides by 180 degrees which is the degree of all triangles combine and get 52
4 0
3 years ago
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