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3 years ago

Which phrase should be inserted on the line to correctly compare the two fractions? Use the models to help.

Mathematics

2 answers:

Viktor [21]3 years ago

8 0

Make like denominators and compare the fractions.

16/20 is one fraction so make the other fraction have 20 as the denominator also. To do that multiply 5 by 4 to get 20. To keep everything even multiply the top number of 4 by 4 also getting 16.

So 16/20 and 16/20 are both fractions having the denominators the same. Therefore these fractions are equal to each other.

pishuonlain [190]3 years ago

4 0

The last answer, "is equal to".

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A restaurant has 15 1/5 pounds of ground beef to make meat loaves. Each meat loaf requires 2 2/8 pounds of ground beef. How many

frosja888 [35]

Answer:

First make mixed

15 x 5 = 75+1=76

76/5

2x8=16+2=18

18/8

Divide

76/5 / 18/8

Use the reciprocal and multiply

76/5 x 8/18

76x8=608

5x18=90

608/90

Simplify

608/2=304

90/2=45

304/45

6 and 34/45 meat loaves

Hope this helps

Step-by-step explanation:

4 0

3 years ago

a two digit number has the following properties. If you add the digits together and multiply the result by 10, you will get 9 mo

konstantin123 [22]

Answer:

10, 11, 12, 13, 14, 15, 16, 17, 18, 19

Step-by-step explanation:

A two-digit number can be written as:

a*10 + b

Where a and b are single-digit numbers.

a is the tens digit

b is the units digit.

the reverse number is:

b*10 + a

We know that:

"If you add the digits together and multiply the result by 10, you will get 9 more than the reverse number"

Then:

(a + b)*10 = b*10 + a + 9

We now need to solve this for a and b, where the other restriction that we have is that a and b can be any whole number of the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

Then:

(a + b)*10 = b*10 + a + 9

a*10 + b*10 = b*10 + a + 9

subtracting b*10 in both sides, we get:

a*10 = a + 9

solving this for a, we get:

a*10 - a = 9

a*(10 - 1) = 9

a*9 = 9

a = 9/9

a = 1

and notice that we do not have any restriction for b. So b can be any number of the set.

for example, if b = 2

a*10 + b = 12

now let's test the property:

10*(1 + 2) = 2*10 + 1 + 9

30 = 20 + 10 = 30

now if b = 4, we have:

a*10 + b = 1*10 + 4 = 14

10*(1 + 4) = 4*10 + 1 + 9

50 = 50

So we can see that for any value of b, this will work.

So the only restriction that we have, is that a must be equal to 1.

Then the numbers are:

10, 11, 12, 13, 14, 15, 16, 17, 18, 19

4 0

3 years ago

Before Anna's dance routine ends, Anna earns 75 points and loose 30 points. Wtite and solve an expression to find Anna's final s

tatyana61 [14]

Earns 75= 75

Loose 30= -30

75-30= 45

Anna’s final score is 45.

Hope this helps!

6 0

3 years ago

Identify The domain of the rational function, g(x)= 1/x+3

8_murik_8 [283]

Answer:

The domain is (-∞ , -3) ∪ (-3, ∞) ⇒ D

Step-by-step explanation:

The domain of the rational fraction is the values of x which make the fraction defined. That means the domain does not contain the values of x which make the denominator equal to 0.

∵ g(x) = $\frac{1}{x+3}$

∴ The denominator = x + 3

→ Equate the denominator by 0

∵ x + 3 = 0

→ Subtract 3 from both sides

∴ x + 3 - 3 = 0 - 3

∴ x = -3

→ That means the domain can not have -3 because it makes the denominator

equal to 0

∴ The domain is all values of real numbers except x = -3

∴ The domain = {x : x ∈ R, x ≠ -3}

∴ The domain = (-∞ , -3) ∪ (-3, ∞)

4 0

3 years ago

Solve 3x+4y=17 5x+4y=27

Marta_Voda [28]

Answer:

(5x+4y)-(3x+4y)=27-17

2x=10

x=10÷2

6 0

3 years ago

Read 2 more answers