MATHEMATICS HIGH SCHOOL

Use substitution to solve this system of equations:
5x+y=10,
y=x+4.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

5x + x + 4 = 10

6x + 4 = 10

6x = 6

x = 1

y = 1 + 4

y = 5

(1, 5)

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Share 56 pound in the ratio 1:3:4

Answers

$(56)/(1+3+4)\n(56)/(8)\n7\n\n7*1=7\n7*3=21\n7*4=28\n7:21:28$

7 : 21 : 28

What is 1/5 reduce to its lowest term

Answers

1/5 is the lowest term because the numerator has 1

1/5 reduced is just 1/5 because if anything has a 1 in it's numerator you know that the GCF is just 1 so you can't have a even more simplified form of this.

Help please!!! :((((((

Answers

Answer: 2000

Step-by-step explanation:

They started counting the population after the year 2000 meaning that in 2000 they had an initial count .

-9y-6+7y=16
What is the answer for this?

Answers

-9y - 6 + 7y = 16
-9y + 7y - 6 = 16
      -2y - 6 = 16
   + 6   + 6
   -2y = 22
      -2    -2
   y = -11

Please help me I don't know how to do it

Answers

findd total collected
add everybody
fri+sat+sun+mon=
21+5 and 5/6+2.75+4 and 5/8
add what you can
21+5+2.75+4+5/6+5/8=
28.75+5/6+5/8
add the fractions by making denom same
5/6+5/8=20/24+15/24=35/24=1 and 9/24=1 and 3/8
28.75+1 and 3/8=29.75+3/8
that is how many barels total
times 205 since that is how many litesr in each bottle
205 times (29.75+3/8)=
205*29.75+205*(3/8)=
6098.75+76.875=
6175.625

29/30 is lost

1//30 remains
9175.625 times 1/30 (aka divided by 30)=205.854166666666666 litesr
205 bottles (and 0.85 partially full bottle)

Jessica wants to go on a school trip next month. The trip will cost $100 and she already has $10 and plans to babysit for $5 an hour to earn the rest of the money.A. Write an equation that could be used to determine h, the number of hours Jessica needs to babysit to earn $100.

B. From your equation, determine the number of hours she needs to babysit.