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nikdorinn [45]
3 years ago
7

Help I’m stuck!!!! Solve the equation below for x. Enter your answer as a fraction in lowes

Mathematics
1 answer:
WINSTONCH [101]3 years ago
3 0

Answer:

26/63

Step-by-step explanation:

Try to make the denominators equal so that you can add them:

4(3)/21(3)= 12/63

2(7)/9(7)= 14/63

And now you add, which will give you:

12/63 + 14/63= 26/63

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Don is paid $4.75 on each class ring sold. How much will he earn if he sells 90 class rings?
Mice21 [21]
He will earn $427.50  because $4.27 times 90 equals $427.50
8 0
3 years ago
Heather chops 250 carrots in 2 hours, and 750 carrots in 6 hours. Write an equation that represents the direct relationship betw
Luda [366]
C represents carrots. t represents time in hours.

c= 125t

To find this equation, I found the unit rate, or how many carrots were chooped per hour. I then plugged it into slope intercept form (y=mx+b) where the y intercept was 0 because she can chop 0 carrots in 0 hours.
3 0
4 years ago
Read 2 more answers
Simplify without using the calculator or the sin tables.​
katovenus [111]

Answer:

1/8

Step-by-step explanation:

sin²(π/8) − cos⁴(3π/8)

Use power reduction formulas:

1/2 (1 − cos(2×π/8)) − 1/8 (3 + 4 cos(2×3π/8) + cos(4×3π/8))

Simplify:

1/2 (1 − cos(π/4)) − 1/8 (3 + 4 cos(3π/4) + cos(3π/2))

1/2 (1 − √2/2) − 1/8 (3 + 4 (-√2/2) + 0)

1/2 − √2/4 − 1/8 (3 − 2√2)

1/2 − √2/4 − 3/8 +√2/4

1/2 − 3/8

1/8

7 0
3 years ago
a certain number is both a perfect square and a perfect cube. Will it's square root and its cube root will always be different n
Alexus [3.1K]

Answer:

No

Step-by-step explanation:

The number 1 is a square number and a cube number, but its square root and cube root will always be the same(1).

6 0
4 years ago
Convert 2/7 into a fraction with a denominator of 28.<br><br> 2/28<br> 8/28<br> 4/28<br> 6/28
sashaice [31]

We multiply by 4 to go from a denominator of 7 to 28 so we must do that do the numerator as well:

\dfrac 2 7 = \dfrac 2 7 \times \dfrac 4 4 = \dfrac{8}{28}

Answer: 8/28


8 0
3 years ago
Read 2 more answers
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