3 years ago

Find the area of the trapezoid shown and choose the appropriate result

Mathematics

1 answer:

puteri [66]3 years ago

7 0

Answer:

B: 13.5 in^2

Step-by-step explanation:

The average length of this trapezoid is (4 in + 5 in)/2, or 4.5 in.

The height is 3 in.

Thus, the area is A = (average length)(height) = (4.5 in)(3 in) = 13.5 in^2

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jarptica [38.1K]

Answer:

3 gallons

Step-by-step explanation:

Let

x ----> the amount of pure acid (100% solution) in gallons

Remember that

$100\%=100/100=1$

$20\%=20/100=0.20$

$60\%=60/100=0.60$

we know that

$(1)(x)+(0.20)(3)=(0.60)(x+3)$

solve for x

$x+0.60=0.60x+1.80$

$x-0.60x=1.80-0.60\\0.40x=1.20\\x=3\ gal$

therefore

3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution

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3 years ago

Solve for y when x = 5.<br> y = 3x + 4

pantera1 [17]

Answer:

Step-by-step explanation:

Plug in

y = 3(5) + 4
y = 19

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2 years ago

Bond [772]

$\frac{77}{16} = \frac{64+13}{16} = \frac{64}{16} + \frac{13}{16} =4 \frac{13}{16}=4.8125\\=4.81 \times 100~percent=481~percent\to\boxed {D}$

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4 years ago

To make cupcakes Leah uses 1/2 cup of chocolate chips for evry 1 1/3 cups of batter if Leah uses 3/4 cups of chocolate chips how

Kisachek [45]

Answer:

Step-by-step explanation:

Leah uses 1/4 cup of chocolate chips for 2/3 cups of batter, so if Leah uses 3/4 cup of chocolate chips, she should use 2 cups of batter.

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3 years ago

Escribe 1entre4 como un decimal

Zinaida [17]

1/4= 0.25 como un decimal

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4 years ago