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velikii [3]
3 years ago
5

The sum of John's age and five times Mary's age is 89. The sum of Mary's age and twice,John's age is 52. Write and solve a syste

m of equations to find both of their ages?
Mathematics
1 answer:
vodomira [7]3 years ago
8 0

Answer:

a+5a=89

a+2a=52

Step-by-step explanation:

You might be interested in
How do I do -4p-(1-6p)
patriot [66]

Answer:

2p-1

Step-by-step explanation:

-4p-(1-6p)

when there is "-" in front of an expression, change the sign of each term of the expression.

-4p -1 + 6p

-4p + 6p  =2p

2p -1

8 0
2 years ago
Question is in the picture:)
Bingel [31]

Answer: It would probably be 30

Step-by-step explanation:

The ratio is 10:0 , 20:10 , 30:20 , 40:30 , 50:40, 60:50 , etc…

so basically you just need to know the ratios!

Hope I could help :)

6 0
2 years ago
Read 2 more answers
Hi what is the anwer for this
IRISSAK [1]

Answer:

2.5cm^2

Step-by-step explanation:

so diameter is basically radius*2...to find radius(since area of circle is pi*r^2 we need to divide diameter by 2)

so 1.8/2=0.9

now,

pi*0.9^2

pi*0.81

2.5 cm^2

4 0
3 years ago
Store display volume of each cube shaped box is 125 cubic inches of the display has six layers of boxes how high is the display
Doss [256]

Answer:

30 inches

Step-by-step explanation:

We know that the formula for calculate the volume of a cube is:

∨=8³

Where "s" is the length of each side.

Since the volume of each cube-shaped box is 125 cubic inches, we can find "s":

125 in³=8³

∛125 in³=8

8=5 in

We know that  the display has six layers of boxes, then , to calculate the height of the display, we can multiply the value of "s" obtained before by 6.

Then:

height= (5 in)(6)=30 in

8 0
2 years ago
17=p-3-3p i need to show my work but i dont know how
nikklg [1K]
17 = p - 3 - 3p
17 = -2p - 3
17 + 3 = -2p
20 = -2p
-20/2 = p
-10 = p <==
3 0
3 years ago
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