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zepelin [54]
4 years ago
5

I need help in math. I never quite got these. (question 20)

Mathematics
1 answer:
erastova [34]4 years ago
3 0
3x^{2} y is the correct answer

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Li and Jen went shopping. • Li bought 5 pairs of earrings and 1 necklace for a total of $63. • Jen bought 1 pair of earrings and
irina1246 [14]

Answer:

<h2>Earing is $13</h2><h2>Necklace is $10</h2>

Step-by-step explanation:

Firstly, let us express the cost

for Li

5e+n=63---------1

for Jen

e+2n=36---------2

the system of equations are

5e+n=63----1

e+2n=36-----2

Multiply 1 by 1 and 2 by 5 to eliminate e we have

 5e+n=63

 5e+10n=180

-0-9n=-117

9n=117

Divide both sides by 9 we have

n=117/9

n=13

put n=13 in eqn 1 we have

e+2(13)=36

e+26=36

e=36-26

e=10

Earing is $13

Necklace is $10

5 0
4 years ago
I need help please and thank you
JulijaS [17]

Answer:

50

Step-by-step explanation:

(14*14)+(48*48)=c2

196+2304=2500

squared root of 2500=50

6 0
3 years ago
Read 2 more answers
A car manufacturer sold about 332,000 cars last year. The number of cars
Viefleur [7K]

Answer:

415,000

Step-by-step explanation:

First, find the decimal equivalent of 125%. To do this, divide 125 by 100 or move two decimal places to the right: 125/100 = 1.25

Now multiply the amount of cars sold last year, 332,000, by the percentage decimal, 1.25: 332,000 x 1.25 = 415,000

The car manufacturer sold 415,000 cars this year

4 0
4 years ago
Help on 26 please :)
Vsevolod [243]

60*5=x

300=x

Therefore, there are 300 monocytes in the blood sample. This is because the text states there are 5 times as many monocytes as basophis, and there are 60 basophils.

8 0
3 years ago
Read 2 more answers
Fine the next three terms in each geometric sequence<br> 2,-10,50,...
lakkis [162]

Answer:

2, -10, 50, -250, 1250, -6250

Step-by-step explanation:

its times -5 every time

4 0
3 years ago
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