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riadik2000 [5.3K]

3 years ago

10

HELP, 30 POINTS !!

2 answers:

sasho [114]3 years ago

8 0

The first one is S(s-4)=7 , and the Second one is 7

vampirchik [111]3 years ago

6 0

Answer: s(s+4)=7, 7 shelves

Step-by-step explanation:

I think it's easiest to find these type of answers by finding the common factors of a number. First 77, they are 1×77 & 7×11.so you can have 11 rocks on 7 shelves or 7 rocks on 11 shelves. The question states the number or rocks on the shelf is more than the number of shelves, so you must have 11 rocks on 7 shelves. You know you have 77 rocks, so the equation must equal 77. I plugged 7 in for s in the equations to determine the correct answer. 7(7+4)=77.

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PLSSSSSSS HELP 100 POINTS [HMTL]Find the measure of side XY.

Dafna1 [17]

Answer:

C

Step-by-step explanation:

15/10=1.5 so 1.5 is the scale factor.

12x1.5=18. So the answer is C.

6 0

2 years ago

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Tony’s Electronics is marking down the price of a TV 23% from the original price of $175. Which expression can be used to find t

Arlecino [84]

Answer:

The sale price is $\$134.75$

The expression is $\$175(0.77)$

Step-by-step explanation:

we know that

The sale price is equal to subtract the discount price from the original price

The discount price is equal to multiply the original price by the percent discount in decimal form

Let

x ----> the sale price

y ---> discount price

$23\%=23/100=0.23$ ----> percent discount in decimal form

$y=\$175(0.23)=\$40.25$

$x=\$175-y$

substitute

$x=\$175-\$40.25=\$134.75$

therefore

the expression is

$175-0.23(175)\\175(1-0.23)\\175(0.77)$

3 0

3 years ago

Read 2 more answers

Answer this question pls? Its 20 pts

ICE Princess25 [194]

Answer:

B a = 180 -77-60

Step-by-step explanation:

The angles add to 180 degrees since they form a straight line

77+ 60+a = 180

a = 180 -77-60

6 0

3 years ago

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A food bank is collecting cans to help people this Thanksgiving. The food bank started off with 40 cans of green beans and they

seropon [69]

75% 30/40= .75
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7 0

4 years ago

HELP PLEASE 10 POINTS!!!!!! A country's population in 1993 was 171 million. In 1999 it was 176 million. Estimate the population

Lilit [14]

Let 1993 = time 0 = 0.

Let 1999 = time 6 = 6

Let 2012 = time 19 = 19

So, a = 171 (million). First solve for k.

176 = 171 e^k6

176/171 = e^(k*6)

ln (176/171) = 6k

k = 1/6 ln (176/171)

So, in 2012 we have: P(19) = 171 e^(19k), where k = 1/6 ln (176/171)

Hope this helped!

3 0

3 years ago