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Rom4ik [11]
2 years ago
14

Can someone please help me it’s timing me I’m confused

Mathematics
1 answer:
padilas [110]2 years ago
7 0

Answer:

Slope is -3

Step-by-step explanation:

(0, -2) and (1, -5)

m= (y2-y1)/(x2-x1)

m= (-5+2)/(1-0)

m=( -3)/1

m = -3

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Evaluate -5-15+4+15
defon

Answer:

-1

Step-by-step explanation:

-5-15+4+15

=-20+19

=-1

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Factor these expressions into an equivalent form.
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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
3 years ago
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