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3 years ago

Ema ate 6 slices of pizza. She ate 3/4 of a entire pizza. How many slices of pizza were there in all?

1 answer:

Taya2010 [7]3 years ago

8 0

Divide 6 by $\frac{3}{4}$

$\frac{6}{1}$ ÷ $\frac{3}{4}$

Change $\frac{3}{4}$ to a reciprocal

$\frac{6}{1}$ × $\frac{4}{3}$ = $\frac{24}{3}$

Simplify and your answer is 8

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Im really confused can someone help me

Sati [7]

I believe you would create and equation to find x and y.

7 0

2 years ago

A teacher used the change of base formula to determine whether the equation below is correct. (log2 10)(log4 8)(log10 4)=3

Misha Larkins [42]

Answer:

The equation is correct

Step-by-step explanation:

(log2 10)(log4 8)(log10 4)=3

Change of base formula

logb (x) = log10 (x)/ log10 (b)

Lets change all non base 10 logs to base 10 logs

(log2 10) = log10 (10)/ log10 (2)

We know that log10 (10 ) = 1 so

(log2 10) = 1/ log10 (2)

(log4 8) = log10 (8)/ log10 (4)

Now we can rewrite the original equation in all base 10

(log2 10)(log4 8)(log10 4)=3

1/ log10 (2) * log10 (8)/ log10 (4) * (log10 4)=3

I can cancel the log10 (4)/ log10 (4)

1/ log10 (2) * log10 (8)=3

log10 (8)/ log10 (2)

We know that 8 = 2^3

log10 (2^3)/ log10 (2) =3

Remember log a^b = b * log a

3 * log10 (2) / log10 (2) =3

We can cancel log 10 (2)/ log10 (2)

3=3

The equation is correct

7 0

3 years ago

Read 2 more answers

One side of a triangular lot is 150 ft and the angel oppiste this side is 55 degrees. Another angel is 63 degrees. Determine how

Olenka [21]

Answer:

474.84 ft of fencing is needed

Step-by-step explanation:

We know that the angles of a triangle sum up 180º. We already know 2 of the triangle's angles (55º and 63º). Therefore the third angle measures:

180 - 55 - 63 = 62.

To know how much fencing is needed, we need the perimeter of the triangle, so we need to find out how much the other sides of the lot measure.

We will use law of sins to solve this problem.

First we solve for y:

$\frac{150}{sin55}= \frac{y}{sin63} \\y=150 (sin63)/(sin55)\\y=133.65/.8191\\y=163.16$

Now we solve for the other side of the lot, x:

$\frac{150}{sin55}=\frac{x}{sin62}\\ x=150(sin62)/(sin55)\\x=150(.8829)/.8191\\x=132.435/.8191\\x=161.68$

Now that we have the measures of all the sides we sum them up

total fencing needed= 150 + 163.16 + 161.68 = 474.84

5 0

2 years ago

Please help !!!!:!:):):$:)

IRISSAK [1]

The correct answer is B

6 0

2 years ago

Read 2 more answers

#5 Write the domain and range as inequalities.

aivan3 [116]

Answer:

Domain: {all real numbers}

Range: {y≥-2}

Step-by-step explanation:

The domain is all real numbers because it continues on and on forever due to the arrows. The range is y≥-2 because the range is anything from -2 and higher. Hope this helps!

5 0

2 years ago