3 years ago

I really need help I’m not getting it.

Mathematics

1 answer:

Nikitich [7]3 years ago

3 0

Answer:

Step-by-step explanation:

not sure sorry ask a parent

You might be interested in

Bus A and Bus B leave the bus depot at 8 am. Bus A takes 25 minutes to do its route and bus B takes 35 minutes to complete its r

Dafna1 [17]

bus a: 25 + 25= 50 minutes x 12 = 6:00

bus b: 35 +35= 70 minutes x 12 = 8:40

3 0

3 years ago

at a concession stand 9 slices of pizza and 5 soft pretzels cost $33.25. If 4 slices of pizza and 6 soft pretzels cost $19.50. W

jok3333 [9.3K]

Answer:

The cost of soft pretzel is $1.25

Step-by-step explanation:

Let $x be the price of one slice of pizza and $y be the price of one soft pretzel.

1. 9 slices of pizza cost $9x and 5 soft pretzels cost $5y. Together they cost $33.25, then

9x+5y=33.25.

2. 4 slices of pizza cost $4x and 6 soft pretzels cost $6y. Together they cost $19.50, then

4x+6y=19.50.

3. Solve the system of two equations:

$\left\{\begin{array}{l}9x+5y=33.25\\4x+6y=19.50\end{array}\right..$

Multiplythe first equation by 4, the second equation by 9 and subtract them:

$4(9x+5y)-9(4x+6y)=4\cdot 33.25-9\cdot 19.50,\\ \\36x+20y-35x-54y=133-175.5,\\ \\-34y=-42.5,\\ \\y=\$1.25.$

Then

$4x+6\cdot 1.25=19.50,\\ \\4x=19.50-7.50,\\ \\4x=12,\\ \\x=\$3.$

6 0

3 years ago

Read 2 more answers

5 cups to 7.5 cups<br><br> What is the percent change? Explain

Rasek [7]

5=100%
5/100=0.05=1%
7.5/0.05=150%

Answer: +50%

5 0

3 years ago

Two combines can harvest 320 acres of wheat in a certain amount of time. Assuming all combines work at the same rate, how many a

hoa [83]

2 combines = 320 acres
320/2 = 160 acres per combine
160 * 6 = 960
Answer: 960 acres

Hope this helps!

4 0

3 years ago

Which expression can be used to determine the length of segment AB?

Stells [14]

Answer:

you need to provide a picture friend

3 0

3 years ago

Read 2 more answers