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Airida [17]
3 years ago
11

−4x+7y=3 solve for x and y

Mathematics
1 answer:
kap26 [50]3 years ago
3 0
-4x+7y=3
-4x=3-7y
x=(3-7y)/4

-4x+7y=3
7y=3+4x
y=(3+4x)/7

Sorry if this is wrong!
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balandron [24]
To solve this, you cross multiply, then divide. In this case, we multiply 4 and 2, then divide by 3.

4 x 2 = 8
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3 0
3 years ago
Tonya has 39 packages. Each package weighs 6 pounds. Choose the best estimate of the total weight of the packages.
Sidana [21]

Step-by-step explanation:

If were estimating, 39 is pretty close to 40 and 40x6 is 240 pounds. if we are getting exact about it, then 234 pounds

5 0
2 years ago
Seven decreased by three times a number is forty,please help
Nonamiya [84]
Hello, 

x= the number
3x= three times the number

seven decreased by three times a number is forty, then:

7-3x=40
-3x=33
x=-11

Answer: the number is -11
4 0
3 years ago
Read 2 more answers
a recipe uses 2 cups of milk per (1) serving. How many servings can be made by using 1 gallon of milk?
Scorpion4ik [409]

Answer:

8

Step-by-step explanation:

16 cups per gallon divided by 2 equalls 8

3 0
3 years ago
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3/14 - 1/7= how much
Fofino [41]
3/14 - 1/7 
= 3/14 - 2/14
= 1/14

so, 3/14 - 1/7 = 1/14
7 0
3 years ago
Read 2 more answers
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