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Afina-wow [57]
3 years ago
13

Ashley is doing some math exercises on a website called Khon Academy. In Khon Academy, you have to get at least 70% of the probl

ems in an exercise right in order to gain proficiency. So far, Ashley has answered correctly 3 out of 7 times. Suppose she answers all of the following q questions correctly and gains proficiency in the exercise. Write an inequality in terms of q that models the situation.
Mathematics
2 answers:
Flauer [41]3 years ago
8 0

Answer:

q>=2

Step-by-step explanation:

if she has 3 out of 7 correct she only needs 2 more right. 70% of 7 needs to be 5 or more  5-3=2

iragen [17]3 years ago
8 0

Answer:

I believe the answer is q>=2.

Step-by-step explanation:

Hope this is correct, thank you!!!!

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Peanuts sell for $3 per pound. Cashews sell for $6 per pound. How many pounds of cashews should be mixed with 12 pounds of peanu
Phantasy [73]

Answer:

84

Step-by-step explanation:

12*3+6x=4.20(12+x)

36+6x=50.4+4.2x

6x-4.2x=50.4-36

1.8x=14.4

x=14.4/1.8

x=8 pounds of cashews is used.

Proof:

12*3+6*8=4.2(12+8)

36+48=4.2*20

84=84

(not mine)

from algebra.com

6 0
3 years ago
Antonio deposits $1,750 into an account that earns 5% interest compounded daily. How much interest does he earn after 1 day?
Natali [406]

Answer:

He earns $0.24 in interest after 1 day.

Step-by-step explanation:

Compound interest:

A(t)=P(1+\frac{r}{n})^{n\ast t}

In which:

P is the principal, the amount of the initial deposit.

r is the yearly interest rate, as a decimal.

n is the number of compoundings during a year.

t is the number of years.

In this question:

Deposit of $1,750, so P = 1750.

Interest rate of 5%, so r = 0.05.

Compounded daily. A year has 365 days, so n = 365.

After 1 day. 1 day is 1/365 of an year, so t = 1/365.

The amount he will have after one day will be:

A=1750(1+\frac{0.05}{365})^{\frac{1}{365}\ast365}=1750(1+\frac{0.05}{365})=1750.24

The interest earned will be:

Amount after 1 day subtracted by the deposit.

Deposit of $1,750.

After 1 day, he will have $1,750.24.

1750.24 - 1750 = 0.24

He earns $0.24 in interest after 1 day.

6 0
1 year ago
What is the slope of a line of best fit if its equation is y = −2x + 3?
EastWind [94]
If given a line in the slope-intercept form

y=mx+b

m is the slope and b is they y-intercept
8 0
3 years ago
The diameter of a circle is 8 cm. find it's area in terms of pi​
nydimaria [60]

Answer:

d=8

r=d/2

r=4

a=πr^2

=22/7×4×4

=50.28

3 0
3 years ago
Read 2 more answers
What percent of 9.2 m is 2.5m?
Valentin [98]
27.1739% percent. to find that, all you have to do is multiply 2.5x100. that equals 250. divide this by 9.2, and that is your answer
7 0
4 years ago
Read 2 more answers
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