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3 years ago

What 2/3 + 5/7 complete denominators

2 answers:

8 0

You have to find common denominators. We can look at 3 and 7 and we know that nothing X 3 would equal to seven. So, we have to multiply
2/3 X 7 + 5/7 X 3
When we do that, we get 14/21 + 15/21
So when we add, the answer is
29/21
When we look at that, we have to see if it can be reduced. We know that both 7 and 3 can go into 21 but can they go into 29? No, so therefore, the answer cannot be reduced
Final answer is 29/21

dem82 [27]3 years ago

4 0

Multiplying numerators and denominators to get the LCD in all fraction denominators

2 × 7 + 5 × 3
------------------
3 × 7 + 7 × 3

Then rewriting the equation with the equivalent fractions

__14__ 15
= ----- + -----
__21 __21

With like denominators we can operate on just the numerators

__14 + 15
= ------------
___21

__29
= -------
__21

Simplifying the answer

__29
= -------
__21

___8
= 1 -------
___21

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Please help solve<br> |-6y+3|=4|y-2|

nekit [7.7K]

Answer:

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Move

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Use the quadratic formula to find the solutions.

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Substitute the values

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Step-by-step explanation:

8 0

3 years ago

Phil sold pizza at the carnival for $1.75 a slice or $9.50 for a whole pizza he sold 76 slices of pizza and 64 whole pizzas he g

Nady [450]

Answer:

Total money he had left=629.85

Step-by-step explanation:

We can express Phil's earnings from pizza sales as;

Total earnings from pizza sales=(price per slice×number of pizza slices sold)+(price per whole pizza×number of whole pizzas sold)

where;

Price per slice of pizza=1.75

Number of pizza slices sold=76 slices

Price per whole pizza=9.50 whole pizzas

Number of whole pizzas sold=64

Replacing in the expression above;

Total earnings from pizza sales=(1.75×76)+(9.5×64)=741

Total money he had left=Total earnings from pizza sales-15% of Total earnings

where;

Total earnings from pizzas ales=741

15% of Total earnings=(15/100)×741=111.15

Replacing;

Total money he had left=(741-111.15)=629.85

8 0

3 years ago

The equation of line WX is y = −2x − 5. Write an equation of a line perpendicular to line WX in slope-intercept form that contai

densk [106]

Answer:

third option

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 2x - 5 ← is in slope- intercept form

with slope m = - 2

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-2}$ = $\frac{1}{2}$ , then

y = $\frac{1}{2}$ x + c ← is the partial equation

To find c substitute (- 1, 1) into the partial equation

1 = - $\frac{1}{2}$ + c ⇒ c = 1 + $\frac{1}{2}$ = $\frac{3}{2}$

y = $\frac{1}{2}$ x + $\frac{3}{2}$ ← equation of perpendicular line

7 0

3 years ago

If I have a 75% chance of winning a bet, what would the odds be that I WON'T be profiting after 15 bets? (Assume I bet the same

Grace [21]

Answer:

Yes

Step-by-step explanation:

How many times you do it it would still be 75%

7 0

2 years ago

ANSWER ONLY IF U KNOW, OR THINK U KNOW.<br><br><br> (ILL MARK U BRAINLIEST)

alexandr1967 [171]

Answer:

I KNOW FOR SURE

Step-by-step explanation:

if that's all the question is then I definitely know the answer ;)

if you forgot to write the rest then hmu haha

4 0

3 years ago

Read 2 more answers