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alekssr [168]
3 years ago
7

HELP PLEASE ILL GIVE BRAINLY

Mathematics
1 answer:
tatuchka [14]3 years ago
6 0

Answer:

97.5

Step-by-step explanation:

25.5+[8(12)]

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mariarad [96]
The answer is 4 So yeaaaa....
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3 years ago
Jan and Wayne went to the store to buy some groceries. Jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef fo
marin [14]
You can solve this by using the system of equations.
Jan - 4.95 = 2H + 3C
Wayne - 5.45 = 3H + 2C

Use elimination.
-3(2H + 3C = 4.95)
2(3H + 2C = 5.45)

Solve. And you'll get:
-6H + (-9C) = -14.85
6H + 4C = 10.9

Cross out -6H and 6H because they cancel out. And you're left with:
-9C = -14.85
4C = 10.9

Add -9C with 4C, and -14.85 with 10.9.
-5C = -3.95

Divide each side with -5.
C = $0.79

Now to figure out what H is, just substitute the C in one of the equations with 0.79.
5.45 = 3H + 2(0.79)
5.45 = 3H + 1.58
-1.58            -1.58
3.87 = 3H
3.87/3 = 3/3(H)
1.29 = H

Finished!
7 0
3 years ago
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Middleschool <br> math problem
fgiga [73]

Answer:

2.14%

Step-by-step explanation:

Hopefully this helps!

4 0
3 years ago
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Pentagon PQRST and its reflection, pentagon P'Q'R'S'T', are shown in the coordinate plane below.
Step2247 [10]
<span>draw a straight line through those points. that's your line of reflection. now you have only to figure out which of those equations corresponds to it.
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5 0
3 years ago
Tim looks up at the top of a tree at an angle of elevation of 40 degrees. If heis 5 ft tall and 10 ft from the tree, how tall is
dolphi86 [110]
<h2>Answer:</h2>

13.391 ft

<h2>Explanations:</h2>

The schematic diagram of the given question is shown below;

The height of the tree is expressed as:

H = h +5

Determine the value of h using the SOH CAH TOA identity

\begin{gathered} tan\theta=\frac{opposite}{adjacent} \\ tan40^0=\frac{h}{10} \\ h=10tan40 \\ h=10(0.8391) \\ h=8.391ft \\  \end{gathered}

Determine the height of the tree

\begin{gathered} H=h+5 \\ H=8.391+5 \\ H=13.391ft \end{gathered}

Hence the height of the tree is 13.391ft

3 0
9 months ago
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