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2 years ago

13

Month for unlimited calls. He also pays $0. 02 for each text message he sends. Which equation represents the total cost, C, in d

ollars, for a month when Eric sends t text messages?.

1 answer:

Natalka [10]2 years ago

6 0

C = 40.02t hope i helped xx

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A storekeeper has two kinds of flour, one selling for 65 cents per pound, and the other selling for 95 cents per pound. How many

Murrr4er [49]

Answer:

The amount of 65 cents per pound flour to use is 40 pounds and the amount of 95 cents per pound flour to use is 60 pounds

Step-by-step explanation:

Let

x ----> amount of 65 cents per pound flour to use

y----> amount of 95 cents per pound flour to use

we know that

$x+y=100$ ----> $y=100-x$ ----> equation A

$0.65x+0.95y=0.83(100)$ ----> equation B

substitute equation A in equation B

$0.65x+0.95(100-x)=0.83(100)$

Solve for x

$0.65x+95-0.95x=83$

$0.95-0.65x=95-83$

$0.30x=12$

$x=40\ lb$

Find the value of y

$y=100-40=60\ lb$

therefore

The amount of 65 cents per pound flour to use is 40 pounds and the amount of 95 cents per pound flour to use is 60 pounds

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Find 8 and one third percent of 144

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$\bf 8\frac{1}{3}\implies \cfrac{8\cdot 3+1}{3}\implies \cfrac{25}{3}
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Step-by-step explanation:

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1 over 3b = 4 over 5 . Which of the following equals b in this equation? (4 points)

vfiekz [6]

Answer:

none of the answers listed are equivalent to b (22/5, 11/8, 2/5, 1/4)

Step-by-step explanation:

$\frac{1}{3b} = \frac{4}{5}$

to simplify, cross multiply

(1 · 5 = 3b · 4)

(5 = 12b)

divide both sides by 12 to isolate b,

$\frac{5}{12} =\frac{12b}{12}$

$\frac{5}{12} = b$

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