Keisha wants to read for 90 minutes.so far , she has read 30% of her goal. how much longer does she need to reach her goal?

Answers

Answer 1

Answer:

She needs to read for 63 minutes to reach her goal.

What is percent?

A number or ratio that can be expressed as a fraction of 100 is called a percentage. Divide the number by its whole number and multiply it by 100 if we have to figure out the percentage of that number. Consequently, the percentage represents one part per hundred. The word "per 100" means "per percent." The number "%" is used to symbolize it.

Given total time to read = 90 minutes

and completed 30% of the goal,

so 30% of 90 = 30/100 x 90

= 2700/100 = 27

since she has read 27 minutes

time left to reach goal = 90 - 27

time left to reach goal = 63 minutes

Hence 63 minutes more she needs to read to complete the goal.

Learn more about percent;

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Answer 2

Answer: 30% of 90 whenever it says "of" put in a multiplication sign
30% x 90 take out the % sign (percent means divided by 100)
30/100 =3/10 simplify,then multiply by 90
3/10 x 90 = 270/10 simplify
270 = 27
90 - 27 = 63 subtract 27 because it is the amount read so far from the total
Keisha has to read 63 more minutes to reach her goal.

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A factory processes 1,560 ounces of olive oil per hour. The oil is packaged into 24-ounce bottles. How many bottles dose the factory fill in 1 hour?

Answers

Answer:

65 bottles in 1 hour.

Step-by-step explanation:

A factory processed 1,560 ounces of olive oil per hour.

The oil is packaged in to 24-ounce bottles.

We will divide total number of ounces processed by one packaged bottle.

The number of bottles filled in 1 hour = $(1560)/(24)$

= 65 bottles

The factory will filled 65 bottles in 1 hour.

I don't understand fractions. Please help me.

Answers

Fractions are one number over another number

As someone already said, fractions are one number over another number. But for this particular problem you would do 5 3/4 times 4 (since she jogged that many miles each day for four days) and then add that to the product of 2 3/5 times 7 (since she walked that many miles each day for seven days). You add them because it says what is the total number of miles Rachel walked and jogged last week. I then got 41 1/5 miles. So Rachel walked and jogged last week for 41 1/5 mikes.

what if erika and Bradley want to hike 14 miles each day? how many days will they hike exactly 14 days?

Answers

you just need to multiply 14 miles by 14 days so the answer is 196

How do you turn 12/15 and 68/80 into a decimal and into a percent

Answers

$(12)/(15)\n\ndivide\ a\ numerator\ and\ a\ denominator\ by\ 3\n\n12:3=4;\ 15:3=5\n\ntherefore\ (12)/(15)=(4)/(5)\n\nmultiply\ a\ numerator\ and\ a\ denominator\ by\ 2\n\n4\cdot\ 2=8;\ 5\cdot2=10\n\ntherefore\ (12)/(15)=(4)/(5)=(8)/(10)=\boxed{0.8}\Rightarrow0.8\cdot100\%=\boxed{80\%}$

$(68)/(80)\n\ndivide\ a\ numerator\ and\ a\ denominator\ by\ 4\n\n68:4=17;\ 80:4=20\n\ntherefore\ (68)/(80)=(17)/(20)\n\nmultiply\ a\ numerator\ and\ a\ denominator\ by\ 5\n\n17\cdot\ 5=85;\ 20\cdot5=100\n\ntherefore\ (68)/(80)=(17)/(20)=(85)/(100)=\boxed{0.85}\Rightarrow0.85\cdot100\%=\boxed{85\%}$

$\frac{\big{12}}{\big{15}}= \frac{\big{3\cdot4}}{\big{3\cdot5}}= \frac{\big{4}}{\big{5}}= \frac{\big{4\cdot2}}{\big{5\cdot2}}= \frac{\big{8}}{\big{10}}=0.8 \n\n1\%\ \ \rightarrow\ \ 0.01\ \ \ \ \ \ \Rightarrow\ \ \ \ \ 10\%\ \ \rightarrow\ \ 0.01\cdot10=0.1\n\n0.8=8\cdot0.1 \ \rightarrow\ \ 8\cdot10\%=80\%\n\n--------------------\n\n$

$\frac{\big{68}}{\big{80}}=\frac{\big{4\cdot17}}{\big{4\cdot20}}=\frac{\big{17}}{\big{20}}=\frac{\big{17\cdot5}}{\big{20\cdot5}}=\frac{\big{85}}{\big{100}}=0.85\n\n0.85=0.8+0.05=8\cdot0.1+5\cdot0.01\n\n0.85\ \ \rightarrow\ \ 8\cdot10\%+5\cdot5\%=80\%+5\%=85\%$

What is the product?(-35+21)(45-1)
0 -1252-2??
0 -1252 +2e?
0 -1252 +8st – 202
0 -12s2+11st – 2x2

Answers

Answer:

-616

Step-by-step explanation:

None of these answers are correct... maybe you entered the equation in wrong. There are no variables so answers B,C, and D would be incorrect. And A is incorrect as well. Again, check the equation... may be wrong.

A painter has a 24-foot ladder that he is using to paint a house. For safety reasons, the ladder must be placed at least 8 feet from the base of the side of the house. To the nearest tenth of a foot, how high can the ladder safely reach?

Answers

pythagorean theorem
legnth of lader is hypotonuse (leaning against wall and wall is one leg and distance from wall to bottom of ladder is other leg)

so
a^2+b^2=c^2 where a and b are legs and c=hypotonuse

a=8

c=24
8^2+b^2=24^2
64+b^2=576
subtract 64
b^2=512
square root both sides
22.62
round to tenth
22.6

answer is 22.6 ft

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