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siniylev [52]
2 years ago
11

15 2 pts Find the area of the given shape, a) 18 b) 15 c) 24 d) 21

Mathematics
1 answer:
Nataly [62]2 years ago
3 0

9514 1404 393

Answer:

  A.  18

Step-by-step explanation:

The area of a trapezoid is given by the formula ...

  A = 1/2(b1 +b2)h

Here, the parallel bases have lengths 3 and 9. The height is 3, so the area is ...

  A = 1/2(3 +9)(3) = 18

The area of the trapezoid is 18 square units.

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Gavin has nickels, dimes and quarters in a ratio of 8:1:2 if Gavin's coins are quarters, how many nickels and dimes dose gavin h
Rina8888 [55]

Answer:

34

Step-by-step explanation:

6 0
3 years ago
Help my grade depends on it
Veseljchak [2.6K]
Lily made $75.36 more than Layla did.  If Layla raised her price to $1.00, she would still not make more money than Lily.

Use a proportion to find the number of cupcakes Lily makes in 8 hours.  She bakes 7 cupcakes in 10 minutes; we want to know how many she makes in 8(60)=480 (since there are 8 hours and each hour is 60 minutes):

7/10 = x/480

Cross multiply:
7*480 = 10*x
3360 = 10x

Divide both sides by 10:
3360/10 = 10x/10
336 = x

Lily bakes 336 cupcakes.

She sells 2/3 of these; 2/3(336) = 2/3(336/1) = 672/3 = 224 cupcakes sold.

Each cupcake is sold for $1.29; 224(1.29) = 288.96

To find the number of cupcakes Layla makes in 8 hours, we set up a different proportion.  We know she bakes 8 cupcakes in 12 minutes; we want to know how many she bakes in 8(60) = 480 minutes:

8/12 = x/480
8*480 = 12*x
3840 = 12x

Divide both sides by 12:
3840/12 = 12x/12
320 = x

She bakes 320 cupcakes.  She sells 75% of those; 75% = 75/100 = 0.75:
0.75(320) = 240

Each of those 240 cupcakes sells for $0.89:
0.89(240) = 213.60

This means Lily makes 288.96-213.60 = 75.36 more than Layla.

If Layla raised her price to $1.00, she would make 1(240) = $240; this is still less than Lily.
6 0
3 years ago
the radius of the Earth is 6378.1 KM which is 2981 .1 km longer than the radius of Mars write and solve the equation to determin
Bad White [126]
6,378.1 - 2,981.1

= 6,000 + 300 + 70 + 8 + 1/10 - 2,000 - 900 - 80 - 1 - 1/10

= (6,000 - 2,000) + (300 - 900) + (70 - 80) + (8-1) + (1/10-1/10)

= 4,000 - 600 - 10 + 7 + 0

= 3,400 - 3 

= 3,397
7 0
3 years ago
Read 2 more answers
Person A is 49 times older than person B. the sum of their ages 1.450​
Pepsi [2]

Answer:

Step-by-step explanation:

Is 1.450 correct?  145 would make more sense.  I'd even go with 1,450, just for a laugh.  I'll assume 1.450 is the correct number here.  I'll assume assute the question eventually asks how old are A and B.

A = 49(B)

A+B=1.450

Substitute:  

49B+B=1.450

50B = 1.450

B = 0.029

A = 49(B)

A = 49*(0.029)

A = 1.421

3 0
2 years ago
PLEASE HELP ASAP 40 POINTSPart A: Which is the correct net for the prism? Explain your answer. (2 points)
Y_Kistochka [10]

Answer:

A. Net A if you fold it up you will get that. B. AB is 3 in BC is 5 in CD is 8.6 in. C. 20

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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