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Lisa [10]
2 years ago
8

Jill took a total of 6 quizzes over the course of 3 weeks. After attending 7 weeks of school this quarter, how many quizzes will

Jill have taken in total? Solve using unit rates.​
Mathematics
1 answer:
MissTica2 years ago
6 0

Answer:

14 quizzes

Step-by-step explanation:

Jill takes 6 quizzes every 3 weeks.

the unit rate is 3 quizzes every week, because 6 divided by 3 equals 2

now, take the number of quizzes per week and multiply it by 7

(2 x 7) = 14

So, Jill would take 14 quizzes in 7 weeks.

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jamerra received a $3,00 car loan. she plans on paying off the loan in 2 years. at the end of 2 years, jamerra will have paid $4
leonid [27]

The rate of interest is 75 % per year

<em><u>Solution:</u></em>

Given that, Jamerra received a $3,00 car loan

she plans on paying off the loan in 2 years

<em><u>Jamerra will have paid $450 in interest</u></em>

Therefore, we get

Principal = $ 300

Number of years = 2

Simple Interest = $ 450

Rate of interest = ?

<em><u>The simple interest is given by formula:</u></em>

simple\ Interest = \frac{p \times n \times r}{100}

Where,

"p" is the principal and "n" is the number of years and "r" is the rate of Interest

<em><u>Substituting the given values we get,</u></em>

450 = \frac{300 \times 2 \times r}{100}\\\\450 = 3 \times 2 \times r\\\\6r = 450\\\\r = \frac{450}{6}\\\\r = 75

Thus rate of interest is 75 % per year

5 0
2 years ago
Factor this equation<br> 4x^2+12x-7
Levart [38]
4x^2+12x-7=0\\\\a=4;\ b=12;\ c=-7\\\Delta=b^2-4ac\\\\\Delta=12^2-4\cdot4\cdot(-7)=144+112=256 \ \textgreater \  0\\\\therefore\\x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{256}=16\\\\x_1=\dfrac{-12-16}{2\cdot4}=\dfrac{-28}{8}=\boxed{-\dfrac{7}{2}}\\\\x_2=\dfrac{-12+16}{2\cdot4}=\dfrac{4}{8}=\boxed{\dfrac{1}{2}}
3 0
3 years ago
Slope is -2/3, and (-6,-5) is on the line
UNO [17]

Answer:

You can use the point intercept equation that uses the slope and a coordinate pair to get the equation

Step-by-step explanation:

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8 0
3 years ago
Find the ratio and unit rate.<br> 216 cherry pieces in 6 bags of candy
Charra [1.4K]

Answer:

216:6 ratio

36 rate

Step-by-step explanation:

3 0
2 years ago
The selling price of an article is Rs 270. If the article was sold at 10 % discount from the marked price, find the marked price
zloy xaker [14]

Answer:

s. p = 270 Rs

discount = 10%

mp.= ?

Mp = s. p + discount

= 270 + 10/100*270

= 270 + 27

= 297 Rs

<h2>297 Rs is the marked price </h2>
7 0
1 year ago
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