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andre [41]
3 years ago
15

Help please. Thank you.

Mathematics
1 answer:
DiKsa [7]3 years ago
4 0

Answer:

the answer is C and D

Step-by-step explanation:

this is a thrapezium..so it is a quadrilateral with one pair of sides parallel.

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A 40% sugar solution is added to an 85% sugar solution to create 1800 mL of a 60% solution. How much of each solution is used? (
denis-greek [22]

Answer:

Number of ml of 40% sugar = x = 1000mL

Number of ml of 85% sugar used = y = 800mL

Step-by-step explanation:

Let the

Number of ml of 40% sugar = x

Number of ml of 85% sugar used = y

From the above question, our system of equations is given as:

x + y = 1800mL ....... Equation 1

x = 1800 - y

40% × x + 85% × y = 60% × 1800mL

0.4x + 0.85y = 1080.... Equation 2

We substitute 1800 - y for x in Equation 2

0.4(1800 - y) + 0.85y = 1080

720 - 0.4y + 0.85y = 1080

- 0.4y + 0.85y = 1080 - 720

0.45y = 360

y = 360/0.45

y = 800mL

Solving for x

x = 1800 - y

x = 1800 - 800

x = 1000mL

Therefore,

Number of ml of 40% sugar = x = 1000mL

Number of ml of 85% sugar used = y = 800mL

4 0
2 years ago
Each gallon of shingle stain covers 120 square feet. How many gallons should you buy to cover 658 square feet?
hjlf
You need to divide 658 by 120 because you know one gallon covers 120 square feet.
6 0
3 years ago
I need this answer answered for me asap
Slav-nsk [51]

Answer: i think it's A or D

Step-by-step explanation:

7 0
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Answer:

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What is the slope of the line that contains these points?
pshichka [43]

Answer:i tink its D) - 4/3

Step-by-step explanation:

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