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OverLord2011 [107]
2 years ago
10

Need some help with this. 20 points! :D Help is much appreciated. :D

Mathematics
1 answer:
Fittoniya [83]2 years ago
4 0
I did it but I don’t know how to put the picture
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Please answer number 29 ASAP
Effectus [21]

h = 5b - 2

\frac 1 2 b h= 36

b(5b - 2) = 72

5b^2 - 2b - 72 = 0

(b - 4)(5b + 18) = 0

b = 4 \textrm{ or }b = -18/5

We can rule out the negative length.

h = 72/b = 72/4 = 18

Answer: b=4, h=18


3 0
3 years ago
Read 2 more answers
Your family goes to a Southern-style restaurant for dinner. There are 7 people in your family. Some order the chicken dinner for
butalik [34]

Answer:

a) 4 people ordered streak dinner

b) 3 people ordered chicken dinner

Step-by-step explanation:

Let the number of people that ordered steak dinner be x

and the number of people that ordered chicken dinner be y

From the question,

There are 7 people in your family

Hence, we can write that

x + y = 7 ...... (1)

Also from the question

Some order the chicken dinner for $13 and some order the steak dinner for $18 and the total bill was $111.

We can then write that

13y + 18x = 111 ...... (2)

From equation (1)

x + y = 7

Then,

x = 7 - y ...... (3)

Put this into equation (2)

13y + 18x = 111

13y + 18(7 - y) = 111

13y + 126 - 18y = 111

-5y = -15

5y = 15

y = 15 / 5

y = 3

Put the value of y into equation (3) to get x

x = 7 - y

Then

x = 7 - 3

x = 4

Hence, 4 people ordered streak dinner

and 3 people ordered chicken dinner

a) 4 people ordered streak dinner

b) 3 people ordered chicken dinner

3 0
3 years ago
Help me with this pls pls pls
nikklg [1K]
3 1/2
Becase if you turn them both in to inporper fractions then you can do other sh1t to find it out
5 0
4 years ago
X / 7 = 3<br><br> A. 21 <br> B. 3/7 <br> C. 20 <br> D. -21
Alexus [3.1K]
The answer would be A. 21 because 21/7 would equal 3
6 0
3 years ago
Read 2 more answers
Becky purchased a home entertainment center set for $2254
vlabodo [156]
Wheres the answer choices
5 0
3 years ago
Read 2 more answers
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