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Temka [501]
2 years ago
10

Question in pic pls help

Mathematics
1 answer:
krek1111 [17]2 years ago
6 0
Linear not sure ...........
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The sum of two numbers is 87. if three times the smaller number is subtracted from the larger number the result is seven. find t
Stolb23 [73]
\left \{ {{a+b=87} \atop {a-3b=7}} \right.



a-3b=7
a=7+3b

a+b=87
(7+3b)+b=87
7+4b=87
4b=87-7
4b=80
b=20

a=7+3b
a=7+3*20
a=7+60
a=67
5 0
2 years ago
What is the solution set of y = x^2 + 2x + 7 and y = x + 7?
frozen [14]

Answer:

A,  I believe

Step-by-step explanation:

7 0
2 years ago
Gerry is reading a book that has 475 pages. He already read some of it last week. He plans to read 160 pages tomorrow. By then,
inessss [21]
475=160-(4/5)b is the correct answer
4 0
2 years ago
Two kids at a summer camp, Tina and Winston, are competing in a potato sack race. Tina is younger, so she is given a head start
agasfer [191]

Answer:

It will take Winston 11 seconds to hop 44 meters and catch up to Tina

Step-by-step explanation:

Set up an equation where x represents the number of seconds:

Tina will be represented by s + 33 since she goes 1 m/sec and she has a 33 meter head start, and Winston will be 4s. We need to find when Winston will catch up, so we need an equal sign.

s + 33 = 4s

Solve for s:

s + 33 = 4s

33 = 3s

11 = s

= 11 seconds

Then, plug in 11 as s to find how many meters he will go:

s + 33

11 + 33 = 44

= 44 meters

7 0
3 years ago
a man standing 20m from a tower estimates the angles of elevation of the top and bottom of a flagpole on the tower as 58° and 55
schepotkina [342]
60.56ft

You can get this by creating right triangles with the adjacent side as 20 and using the angles given. You can then find the opposite sides using tangents and then simply add them together. <span />
7 0
2 years ago
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