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Alexxx [7]
3 years ago
10

X=4, y= -7, z=9 solve: -2x-3y+z

Mathematics
1 answer:
vesna_86 [32]3 years ago
8 0

Answer:

22

Step-by-step explanation:

To solve this we can plug the values in.

-2x-3y+z

-2(4)-3(-7)+(9)

Simplify.

-8+21+9

Add.

22

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What is the value of x. 4x-10 3x+2 5x-22
Galina-37 [17]

Answer:

X=35

Step-by-step explanation:

6X =45 SO ANSWER TO THE QUESTION IS 35

7 0
3 years ago
12- Find the percent of change: 56 increased to 88
Scorpion4ik [409]
Number 1 is 32 and the second one is 85
8 0
3 years ago
45% of 40 is 18% of what number?
alexandr1967 [171]
So 45% OF 40 is 
45% * 40 
0.45 * 40
that is 18

18 is 18% of what number?
18 = 18% * x
18 = 0.18 * x
divide both sides by 0.18
100 = x
45 % of 40, which is 18, and is 18% of 100.

Hope this helps
3 0
3 years ago
Read 2 more answers
chegg porter averages 21 points per basketball game with a standard deviation of 4.5 points. suppose porter's points per basketb
romanna [79]
Chegg porter averages 21 points per basketball
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8 0
1 year ago
Sheldon wants to buy a laptop that costs $ 450 from an electronics store . He has two coupons to choose from coupon A which give
Gekata [30.6K]

Answer:

Coupon B

Step-by-step explanation:

Given

Price = \$450

Coupon\ A = \$80

Coupon\ B = 20.5\%

Required

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From the question, we have:

Coupon\ A = \$80

Coupon\ B = 20.5\%

Coupon B means that:

Coupon\ B = 20.5\% * \$450

Coupon\ B = 0.205 * \$450

Coupon\ B = \$92.25

By comparison:

Coupon B gives him a better buy because: \$92.25 > \$80

7 0
3 years ago
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