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Lady_Fox [76]
4 years ago
11

A box of cereal stated there are 90 calories in a 3/4 cup serving. How many calories are there in 4 cups of the cereal

Mathematics
1 answer:
Elenna [48]4 years ago
3 0

Answer:

Step-by-step explanation:

Lets call the calories in one cup 'x'

so (3/4)x=90

Solving for x:

x=(90)/(3/4)

x=120

Now for 4 cups:

(4)(120)=?

480 calories in 4 cups of cereal

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(a + 1)(a + 2) = 0 solve quadratic equation by factoring
Klio2033 [76]

Answer: a^2+3a+2

Step-by-step explanation:

if you do the distribution method and do (a*a)+(a*2)+(1+a)+(1*2)=(a^2)+(2a)+(a)+(2)

which you get a^2+3a+2

7 0
3 years ago
What angles could we find sine and cosine for using information for π/4 and π/6?
liberstina [14]
Had to do a bit of guesswork to figure out what you're asking here.  If you're given the 2 angles pi/4 and pi/6, you can find any trig function of either angle.

The sine of pi/4 is  1 / sqrt(2); the cosine is the same.

The cosine of pi/6 is sqrt(3) / 2; the sine of pi/6 is 1/2.

If this isn't quite what you were looking for, try paraphrasing your question to make it clearer.
7 0
3 years ago
Help help help help math math
Sav [38]
You cross multiple. Remember 5 = 5/1

So x/2 = 5/1

Cross multiple x is linked with 1 and 2 is lined with 5.

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4 0
2 years ago
At the farmers market a farmer has bunches of radishes for sale. The
stealth61 [152]

Answer:

The  probability a random selected radish bunch weighs between 5 and  6.5 ounces is 0.8185

Step-by-step explanation:

The  weight of the radish bunches is normally distributed with a mean of  6 ounces and a standard deviation of 0.5 ounces

Mean = \mu = 6

Standard deviation = \sigma = 0.5

We are supposed to find  the  probability a random selected radish bunch weighs between 5 and  6.5 ounces i.e.P(5<x<6.5)

Z=\frac{x-\mu}{\sigma}

At x = 5

Z=\frac{5-6}{0.5}

Z=-2

Z=\frac{x-\mu}{\sigma}

At x = 6.5

Z=\frac{6.5-6}{0.5}

Z=1

Refer the z table for p value

P(5<x<6.5)=P(x<6.5)-P(x<5)=P(Z<1)-P(Z<-2)=0.8413-0.0228=0.8185

Hence the  probability a random selected radish bunch weighs between 5 and  6.5 ounces is 0.8185

6 0
3 years ago
1.) Of the 140 pages in a book, 25% of them have illustrations. How many pages have illustrations?
hram777 [196]
1) 140/4=. or. 140/.25
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3) 650x 1.1=. 1 being Fri. attendance .1 the 10% increase on Saturday
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3 years ago
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