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3 years ago

There are 54 students in the cafeteria 30 girl sand 24 boys what is the ratio of girls to boys in cafeteria

Mathematics

1 answer:

tresset_1 [31]3 years ago

3 0

The answer is 5 :4

please mark as brainliest thanks'!!!

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During a certain day, a worker made 81 parts. He usually does 45 parts per day. What was the percent by which he increased the n

SIZIF [17.4K]

45/81 = .55
Turn this into a percent: .55 x 100
55 percent
Hope this helps!

6 0

3 years ago

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PLEASe PLEASE HeLP PLEASEEEEE

MA_775_DIABLO [31]

Answer:

option A

x=15/2

Step-by-step explanation:

refer to the above attachment

sorry for the messy writing:^

3 0

2 years ago

Given that f(x) = x2 + 10x + 21 and g(x) = x + 7, find (f•g)(x) and express

sammy [17]

Answer:

Step-by-step explanation:

$given \\ f(x) = x ^{2} + 10x + 21 \: and \: g(x) = x + 7$

$as \: we \: know \: (f.g)x \: is \: same \: as$

$f(g(x))$

$so \:$

$f(x + 7) = ( x + 7) ^{2} + 10(x + 7) + 21$

$f(x + 7) = {x}^{2} + 14x + 49 + 10x + 70 + 21$

$f(x + 7) = x^{2} + 24x + 140$

$therefore$

$(f.g)x = {x}^{2} + 24x + 140$

3 0

3 years ago

Consider a home mortgage of $225,000 at a fixed APR of 4.5 % for 30 years. a. Calculate the monthly payment. b. Determine the

White raven [17]

<u>The formula for the monthly payment</u>.....

$M= \frac{P(1+r)^nr}{[(1+r)^n] -1}$ , where P = the principal amount, r = the monthly interest rate and n = the total number of months.

Here annual interest rate is given as 4.5%

So, the monthly interest rate $=\frac{4.5\%}{12}= 0.375\% = 0.00375$

Total number of months $= (30*12)months=360 months$

Also given that, the principal amount is $225000

a. So, the monthly payment will be.....

$M= \frac{P(1+r)^nr}{[(1+r)^n] -1}\\ \\ M= \frac{225000(1+0.00375)^3^6^0*0.00375}{(1+0.00375)^3^6^0 -1}\\ \\ M= \frac{225000(1.00375)^3^6^0*0.00375}{(1.00375)^3^6^0 -1} \\ \\ M \approx 1140$

Thus, the monthly payment will be approximately $1140

b. The <u>total amount paid</u> over the term of the loan will be: $\$ 1140*360 months = \$ 410400$

c. As the principal amount was $225000 , so the amount of interest $= (\$ 410400- \$ 225000)= \$ 185400$

So, the percentage of amount that is paid toward the principal $=\frac{225000}{410400}*100\% =54.82\%$

and the percentage of amount that is paid toward the interest $=\frac{185400}{410400}*100\%=45.18\%$

4 0

3 years ago

What is C in the triangle <br> C=

Alla [95]

Answer:

C = 13

Step-by-step explanation:

$A^{2}$ + $B^{2}$ = $C^{2}$

$5^{2}$ + $12^{2}$ = 169

$\sqrt{169}$ = 13

4 0

3 years ago

Read 2 more answers