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Svet_ta [14]
3 years ago
13

Justin weighs 15 pounds less than Greg weighs. Half of Greg’s weight is 75 pounds less than Justin’s weight. How much does each

of them weigh? A. Greg weighs 200 pounds, and Justin weighs 185 pounds. B. Greg weighs 190 pounds, and Justin weighs 175 pounds. C. Greg weighs 180 pounds, and Justin weighs 165 pounds. D. Greg weighs 170 pounds, and Justin weighs 155 pounds.
Mathematics
1 answer:
liubo4ka [24]3 years ago
6 0

Answer:

C. Greg weighs 180 pounds, and Justin weighs 165 pounds

Step-by-step explanation:

let G be the weight of Greg and J be the weight of Justin

G -15=J

G/2 +75=J

G =J+15       (1)

G+150=2J.  (2)

If We substitute G by J+15 in equation (2) we will get:

G =J+15

J+15+150=2J

G =J+15

J+15+150=2J

G =J+15

J+165=2J

then J=165 and G=165+15=180

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Write the equation of a line that has a slope of 1/3 and a y intercept at (0,4)
Rus_ich [418]

Answer:

y = 1/3x + 4

Step-by-step explanation:

The slope intercept form is y=mx+b so what we need to do is fill in the blanks. M is the slope and we know the 1/3 is the slope. (0,4) is basically meaning that the x-value is 0 and the y-value is 4, and when that's the case it means 4 is the y-intercept. Now we can put the information together y = 1/3x +4 is the equation.

Hope this helps and have a great day!

5 0
4 years ago
HELP PLEASE!! THANK YOU!
dmitriy555 [2]

Answer: choice B, 40.5 degrees

The triangle is isosceles based on the fact that AC = BC (the tick marks are the same). The angles opposite the congruent sides are also congruent

angle A = angle B = x for some unknown number x

The three angles A,B,C add to 180, so,

A+B+C = 180

x+x+99 = 180

2x+99 = 180

2x = 180-99

2x = 81

x = 81/2

x = 40.5

So angle A and angle B are both 40.5 degrees

Check:

A+B+C = 180

40.5+40.5+99 = 180

180 = 180 answer is confirmed

==============================

Edit

The sides with the two tick marks are the same length, so 7x-4 is the same as length as 31

7x-4 = 31

7x = 31+4

7x = 35

x = 35/7

x = 5

Answer is choice B) 5

3 0
4 years ago
What time is a quarter of an hour past 8:15 a.m.?
777dan777 [17]
8:30 am. A quarter of an hour is 15 min
3 0
3 years ago
Simplify the expression.<br> -1/2 (-5/6+1/3)
yuradex [85]

Answer: 1/4

(Decimal: 0.25)

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%7B%28x%20-%20y%29%7D%5E%7B2%7D%20" id="TexFormula1" title=" {(x - y)}^{2} " alt=" {(x - y)
Lubov Fominskaja [6]

Step-by-step explanation:

=  {(x - y)}^{2}  \\  =  {x}^{2}  - 2xy +  {y}^{2}

3 0
3 years ago
Read 2 more answers
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