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lesantik [10]
3 years ago
9

I Just need help with No. 9 and No. 10

Mathematics
2 answers:
larisa86 [58]3 years ago
4 0

Answer:

Hii friend

Step-by-step explanation:

Sorry friend but your ques not showing clearly.

drek231 [11]3 years ago
3 0
#9- she is not correct because the least amount of time is 1 and that multiplied by 1 and 1/2 does not equal 3 and 3/4 which is the highest amount of time.
#10- Liz is correct because 7 students spent less time and 5 students spent 2 and 1/2 hours or more.
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The high school leadership team is having a car wash. They charge $5.50 for large cars and $4.00 for small cars . They had a suc
11Alexandr11 [23.1K]

Answer: 56 large cars and 86 small cars.

Step-by-step explanation:

Let's call:

l: the number of large cars.

s: the number of small cars.

Then, you can set up the following system of equations:

\left \{ {{l+s=142} \atop {5.50l+4.0s=652.50}} \right.

You can use the Elimination Method:

- Multiply the first equation by -4.0

- Add both equations.

- Solve for l.

\left \{ {{-4.0l-4.0s=-568} \atop {5.50l+4.0s=652.50}} \right.\\--------\\1.5l=84.5

l≈56

Substitute l=56 into one of the original equations and solve for <em>s:</em>

<em> </em>56+s=142\\s=142-56\\s=86

3 0
3 years ago
PLZZZZZZ I NEED HELP IM SO TIRED PLZZZZZZZZ
ipn [44]

Answer:

8.99

Step-by-step explanation:

\left|-46.09+51.64\right|+\left|18.08-21.52\right|

\left|-46.09+51.64\right|=5.55

\left|18.08-21.52\right|=3.44

5.55+3.44

8.99

8 0
3 years ago
The ratio of the number of beads Karen had to the number of beads Patricia had was 2:5 .After Patricia bought another 75 beads,t
blondinia [14]
K:P=2:5
P+75 it is 4:15
at first, P=5 units
so we have
2:5 and 4:15
since the K units didn't change we conver them to the same
2:5 times 2:2=4:10
so from 4:10 to 4:15 is a change of 75 in the right side
therefor 75=5 units so 75/5=15/1= 1 unit
so at first K=4 units=4 times 1 unit=4 times 15=60
P=10 units so 10 times 15=150

at first
Karen=60
Patricia=150
7 0
3 years ago
Do you guys know any place to get cheap skateboards, besides Amazon?
Aleksandr [31]

Answer:

um yeah

amazon is good

i have a skate shop called skatepro they have good decks

and um walmart sum times has ok decks for cheap

ebay too but they will be used

3 0
3 years ago
Simplify the following expression:<br><br> -7(3e-2f+4)+6e-2<br><br> Please help me!!!!
Deffense [45]
-7 (3e-2f+4)+6e-2= -21e +14f -28 +6e -2= -15e +14f -30
3 0
3 years ago
Read 2 more answers
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