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professor190 [17]
4 years ago
5

7(+5)=21can you please help with math problem​

Mathematics
1 answer:
zysi [14]4 years ago
3 0
What do u have to find?
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Antonette gets $70\%$ on a 10-problem test, $80\%$ on a 20-problem test and $90\%$ on a 30-problem test. If the three tests are
notka56 [123]

Answer:

Percentage score will be 83.33 %

Step-by-step explanation:

We have given Antonette gets 70 % on 10 problem test

Let consider here here total problem = total marks

So marks get 10 10 problem test = 10×0.7 = 7

Marks get in 20 problem test = 20×0.8 = 16

And marks get in 30 problem test = 30×0.9 = 27

Now total marks get get by Antonette = 7 +16 + 27 = 50

And total marks = 60

So percentage score of Antonette =\frac{50}{60}\times 100=83.33 %

8 0
4 years ago
This is rlly hard i need help both pls
mart [117]

Answer:

length times hight times whith

4 0
3 years ago
Read 2 more answers
The chess club has 16 members and gains a new member every month. the film club has 4 members and gains 4 new members every mont
steposvetlana [31]
<span>For chess club:
y1 = 16 + 1*x where y1 = total number of members after x months .
For film club:
y2 = 4 + 4*x where y2 = total number of members after x months.

y1 = y2 when:
16 + x = 4 + 4x
3x = 12
x = 4 months
Answer: C. 4 months.</span>
3 0
4 years ago
Thomas received a $50 gift card for an online store, and he wants to buy LED lights to decorate his bedroom. If one strand
olga nikolaevna [1]

Answer:

Thomas can buy 4 strands.

Step-by-step explanation:

We need to round $11.86 to the nearest dollar, which is $12.

Now we ask ourselves, "how many times does 12 go into 50 without going over?"

12 × 4 = 48

12 can go into 50 4 times.

8 0
3 years ago
Read 2 more answers
I need help with math!!! time is running out!!! will mark brainliest!!!
salantis [7]
3/10
Calm down u got this;)
5 0
3 years ago
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