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DerKrebs [107]
3 years ago
13

5. The ratio of boys to girls in a school is 4:5 if there are 765 students in

Mathematics
1 answer:
jasenka [17]3 years ago
5 0
528 andujejdjbefuneidndkeiiejebdfxkiduwhrbfiduevndixueooqoqkbsvd
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Will you help me?
Volgvan

Answer:

The length side of the original square banner was 9 ft

Step-by-step explanation:

Let

x-----> the length side of the original square banner

we know that

The new area of the banner is equal to

91=(x+4)(x-2)

Solve for x

91=(x+4)(x-2)\\ \\91=x^{2}-2x+4x-8\\ \\x^{2}+2x-99=0

Solve the quadratic equation by graphing

The solution is x=9 ft

see the attached figure

8 0
3 years ago
A recipe uses 1 1/4 cups of to make 10 servings. If the same amount of milk is used for each servings, how many servings can be
Troyanec [42]

Answer:

120

Step-by-step explanation:

Im not sure but 1.25 equals 1 1/4   and 16 cups equal a gallon.

16 divided by 1.25 is 12 which means that 12 of those ten servings equal a gallon.  10 times 12 is 120 which becomes ur answer. Once again im not sure but i hope that ive helped.

7 0
3 years ago
What is the slope of the line X=-3?
Mars2501 [29]

Answer:

undefined

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Between which pair of numbers is the exact product of 379 and 8.
Bezzdna [24]
<span>Product means multiplication, so I would multiply 379 and 8.
379 x 8 = 3032
3032 is directly in between 3031 and 3033

brainly.com/question/122236
</span>
3 0
3 years ago
What is the probability of selecting a seventh-grader from a school that has 250 sixth-graders, 225 seventh-graders, and 275 eig
Nina [5.8K]

Answer:

3/10 or 0.3 or 30%

Step-by-step explanation:

Its 225/750 total students

We simplify this by dividing by 5

45/150

Divide by 5 again

9/30

Divide by 3

3/10

3 0
3 years ago
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