3 years ago

can somebody plz help with these 4 questions I will give brainiest to anybody that answer them correct

Mathematics

1 answer:

Ne4ueva [31]3 years ago

5 0

Answer:

number 9 is 720

Step-by-step explanation:

4(45)+4 * 3(45)

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When Sal rented a car for 3 days, he drove it a total of 90 miles and paid $193.35. When Ashley rented a car for 5 days and drov

lutik1710 [3]

Answer:

C. $59.95

Step-by-step explanation:

8 0

3 years ago

Simplify by combining like terms<br> Х<br> 10k +5 +2k

Arte-miy333 [17]

Answer: 12k + 5
Hope this helps:)

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3 years ago

Read 2 more answers

if 2/3 of the girls in class have brown eyes and 1/4 of the girls have blue eyes, what fraction of the girls in class have neith

Crank

2/3 + 1/4. You start by converting the fractions so that they have a common denominator.
8/12 + 3/12 = 11/12
11/12 of the girls have blue and brown eyes. That leaves 1/12 of the girls who have neither blue nor brown eyes.

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3 years ago

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The quadratic equation ax^2+32x+c=0 has exactly one solution. If a+c=130, and a>c, find the ordered pair (a,c).

vitfil [10]

Ie 32^2 - 4ac=0 so ac=256 and a+c=130
So, that means:2 equations ac=256 a+c=130 ie c=130-a
So,a(130-a)=256 so 130a -a^2=256 ie a^2-130a +256=0 (a-2)(a-128)=0
Finally,giving a= 2 or a=128 so, a=2 c=128 or a=128 c=2
Since, a>c , a=128 and c=2 ie (128,2)

4 0

3 years ago

Which is greater 11/16 or 3/4

Anettt [7]

To compare fractions, we need to have the same denominator
The least common multiple is 16
$\frac{11}{16}$
to change $\frac{3}{4}$ , we should multiply the numerator and denominator by 4
$\frac{3*4}{4*4}$ = $\frac{12}{16}$

$\frac{11}{16}$ < $\frac{12}{16}$

so basically, $\frac{12}{16}$ is greater than $\frac{11}{16}$
which means $\frac{3}{4}$ is greater

$\frac{3}{4}$ is greater

6 0

3 years ago