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mrs_skeptik [129]
3 years ago
7

What is the value of the expression 3x-8y when x=10 and y=2?

Mathematics
2 answers:
Greeley [361]3 years ago
7 0

Answer:

14

Step-by-step explanation:

3x-8y

(3*10)-(8*2)

30-16

14

madam [21]3 years ago
3 0

Answer:

30-16

Step-by-step explanation:

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What’s equivalent to 5X -20 minus X +9
slega [8]

Answer:

No answer

Step-by-step explanation:

5x-20-X+9

7x-20+9

7x-11

5 0
3 years ago
My friend has $729 to spend on a fence for her rectangular garden. She wants to use cedar fencing which costs $18/yard on one si
denis23 [38]

Answer:

two consecutive negative integers have a product of 110 . what are the integers?

Step-by-step explanation:

4 0
3 years ago
Making coconut cookies. The recipe calls for 420 g of coconut and 120 g of sugar. Only has 252 g of coconut. How much sugar must
geniusboy [140]

Answer: 72 grams.

Step-by-step explanation:

Let be "s" the amount of sugar in grams that  must be used for 252 grams of coconut to keep the same ratio of coconut to sugar.

Knowing that in the recipe for the coconut cookies, should be 420 grams of coconut and 120 grams of sugar, and you only have 252 grams of coconut, you can set up this proportion to find "s":

\frac{420grams}{120grams}=\frac{252grams}{s}

Now, you need to solve for "s":

\frac{420grams}{120grams}=\frac{252grams}{s}\\\\s(\frac{420grams}{120grams})=252grams\\\\s=(252grams)(\frac{120grams}{420grams})\\\\s=72grams

4 0
3 years ago
PLEASE HELP ME!! I WILL GIVE BRAINLIEST. Please don't give me the wrong answers :(
nignag [31]

Answer:

10. MN=17.9 in

11. ST= 4.1 cm

12. CE= 13.0 yd

Step-by-step explanation: hope this helps :)

3 0
3 years ago
Read 2 more answers
PLEASE HELLPPPPPPPP.......
Vanyuwa [196]

Answer:

11in

Step-by-step explanation:

a^2+b^2=c^2  when c is the hypotenuse

10^2+sqrt21^2=c^2

100+21=c^2

121=c^2

11=c

4 0
3 years ago
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