Sadie works 5 more hours than Kerry does, and Mark works 2 hours less than Kerry. Together they work 120 hours. How many hours does each person work?

Answers

Answer 1

Answer:

Sadie:44 Kerry:39 mark:37

Step-by-step explanation:

(5+w) + w + (w-2)=120

-5 from both sides

w+w+(w-2)=115

+2 from both sides

w+w+w=117

117/3 = w


Related Questions

Is -20 solution x/-10=2?

Answers

Answer:

Yes

Step-by-step explanation:

Multiply -10 on both sides so x=-20

Over the course of 4 months, Spiffy the dog lost 36 pounds. What integer represents his loss per month?

Answers

Answer:

-9 pounds / month

Step-by-step explanation:

A loss of 36 pounds is a negative number

-36

Divide by the number of months

-36 pounds / 4 months

-9 pounds / month

Divide total loss by number of months:

36 pounds / 4 months = 9 pounds per month.

Because it lost weight the integer would be negative 9 (-9)

Maddie spent about $12 on 3.8 pounds of one type of fruit. Which types of fruit could Maddie have bought? Check all that apply.

apples- 1.89

cherries- 5.28

grapes- 2.78

pears- 1.41

strawberries- 3.12

Answers

Answer: strawberries, grapes, apples, and pears

Step-by-step explanation:

Strawberries:

3.12*3.8≈11.86 which is less than 12.

Grapes, pears, and apples are less than strawberries, so those are also possibilities.

Answer:

Step-by-step explanation:

strawberries and grape

Find the slope of a line through the given points.
(3-7), (5,5)

Answers

Answer:

11/2

Step-by-step explanation:

Answer: m = 6

Step-by-step explanation: Start by writing down the slope formula.

m = y₂ - y₁ / x₂ - x₁

We take the second y minus the first y over the second x minus the first x.

m = 5 - (-7) / 5 - 3

m = 12 / 2

m = 6

So the slope of our line is 6.

A runner sprints 100m at 8m/s what is time?

Answers

Answer:

12.5 sec

Step-by-step explanation:

distance = speed x time

distance / speed = time

100/8 = 12.5

12.5seconds

hope this helps

brainliest plz?

x

0,4 Find the roots of the following quadratic equations
using the quadratic formula
1) 6a²x² - 7abx - 3b²=0, a is not equal to zero​

pls answer

Answers

Answer:

b = b2-4ac

= (-7ab)^2 -4 (6a^2)(-3b^2)

= 49a^2b^2 + 72a^2b^2

= 121a^2b^2

Now, x = (7ab +- root 121a^2b^2)÷2(6a²)

= (7ab +- 11ab ) ÷ 12a²

= ( 20ab)/12a² or 4ab/12a²

= 5/3ab or - 1/3ab .

So, these are its roots .

Step-by-step explanation:

10.50 divided by 2.5 = 4. The decimal in 2.5 is moved one space to the right. The decimal in 10.50 is moved 1 space to the right.
Yen paid $10.50 for 2.5 pounds of pretzels. What price did she pay for each pound of pretzels?

After dividing 25 into 105, the next step is to
25 by 4.
The next step is to
100 from 105.
The next step is to
the next number.
ill give brainliest

Answers

Answer:

Multiply, Subtract and bring down

Step-by-step explanation:

i took ed ofccc

Solve For v.
12= -4v+2 (v+2)
Simplify your answer as much as possible.

Answers

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

The first step you should take is to distribute the 2, so if you do that it'll leave you with... [tex]12=-4v+2v+4[/tex]

Then you notice the like terms and then you have to combine them and that'll give you... [tex]12=-2v+4[/tex]

Now you subtract the 4 to both sides and get... [tex]8=-2v[/tex]

Lastly the fun step is to divide the -2 to both sides and to get the answer of...

[tex]v=-4[/tex]

EMERGENCY! Please give me the correct answer!​

Answers

Answer:

6^10

Step-by-step explanation:

6^0 is 1 so 6^10 x 1 is just 6^10

Find the slope of the line through (6, -7) and (4, -8)

Answers

Answer:

1/2

Step-by-step explanation:

Y2-y1

________

X2-x1

-7 - (-8) = 1

6-4=2

Slope is 1/2

The slope of the line through (6, -7) and (4, -8)

What is the slope?

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

where (x₁, y₁) and (x₂, y₂) are the two points that you are trying to find the slope between.

Given;

Two points; (6, -7) and (4, -8)

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

m=(-8-(-7))/(4-6)

m=(-1)/-2

m=1/2

Therefore, the slope between the two given points will be1/2

Learn more about slope here:

https://brainly.com/question/2503591

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10 points show your work please thank you

Answers

Answer:

Step-by-step explanation:

12*15

180

Answer:

X=9

Step-by-step explanation:

15^2=12^2+x^2

225 = 144 +x^2

225-144=x^2

81 =x^2

squareroot(81) = x

round 420000 to the nearest tenth

Answers

Answer:

It is rounded

Step-by-step explanation:

Answer:

It is already rounded up, unless you have forgotten the decimal point.

Step-by-step explanation:

2. One action figure sells for $3.50 How many action figures can Sergio buy for $20.00?​

Answers

Answer:

5

Step-by-step explanation:

20 divided by 3.50 = 5.71428571429

why are 1/4 and 3/8 represented with negative numbers on the number line in the example ​

Answers

Answer: There's no image there, but I assume it's because they are behind the 0.

Step-by-step explanation: The range of real numbers goes from - infinity to positive infinity. The 1/4 and 3/8 that are on the number line are probably behind the 0, indicating that they are negative numbers. I don't know if what I'm saying makes sense in the context of the problem (since you didn't provide a picture).

The Massachusetts Body of Liberties __________.Which shows two expressions that are equivalent to (Negative 7) (Negative 15) (Negative 5)?

Answers

Answer:

Step-by-step explanation:

The Massachusetts Body of Liberties were technically the first ever legal code system established by the colonists, and established a central court that had full rights and jurisdictions over the citizens.

Find the diameter of the semicircle whose area is 1232 cm2​

Answers

Area of semicircle =

[tex] \frac{ {\pi \: r}^{2}}{2} [/tex]

Area of the given semicircle = 1232 cm^2

[tex] \frac{ {\pi \: r}^{2}}{2} = 1232 \\ = > {\pi \: r}^{2} =( 1232 \times 2) \\ = > \frac{22}{7} {r}^{2} = 2464 \\ = > {r}^{2} = ( \frac{2464 \times 7}{22} ) \\ = > {r}^{2} = 784 \\ = > r = \sqrt{784} \\ = > r = 28cm[/tex]

[tex]d = r \times 2 \\ d = (28 \times 2 )cm\\ d = 56cm[/tex]

Hence, the diameter of the circle is 56cm

I’m u sure on this one

You have $300 to spend on school clothes shirts cost $15 and pants $20

Answers

265 should be correct

Answer

19 pants and 6 shirts

sporting goods store is offering a 20% discount on shoes. Mariana also has a $5 off coupon that can be applied to her
purchase. She is planning to buy a pair of shoes that originally costs $89. Will the final price be lower if the discount is applied before the
coupon or if the coupon is applied before the discount? Justify your response

Answers

The discount price will be the same either way. (The commutative property)

20 percent of $89.00= 17.80$

$89.00 - ($5.00 x $17.80) = $66.20

$89.00 - ($17.80 x $5.00) = $66.20

The final price be lower if the discount is applied before the coupon.

What is the fundamental principle of multiplication?

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

Given that sporting goods store is offering a 20% discount on shoes. Mariana also has a $5 off coupon that can be applied to her

purchase.

She is planning to buy a pair of shoes that originally costs =  $89.

The discount price is the same either way.

Thus 20 percent of $89.00= 17.80$

Therefore, we have;

$89.00 - ($5.00 x $17.80) = $66.20

$89.00 - ($17.80 x $5.00) = $66.20

Learn more about multiplications;

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help with this !!! thanks

Answers

Answer:  Casey bought 4 1/2 pounds of apples

The equation is 0.88x - $1.50 = 2.46

x is the unknown number of pounds of apples.

0.88 is the cost per pound,  0.88x is the total cost of the apples before the discount .The discount is $1.50   $2.46 is the cost after the discount.

Part b Step-by-step explanation:

0.88x - $1.50 = 2.46 . Add $1.50 to both sides

0.88x - $1.50 + $1.50 = 2.46 + 1.50  

On left, 1.50-1.50=0 so "cancels'  on the right, add $2.46 + 1.50 = 3.96

0.88x = 3.96  is the cost before discount . Divide both sides by .88

.88x/.88 = 3.96/.88 .  .88/.88 = 1 so 1 'cancels'  leaving x.   3.96/.88 = 4.5

x = 4.5

part c

4.5 is 4 1/2, the (previously unknown) number of pounds of apples.

Casey bought 4 1/2 pounds of apples.

passes through (-6,-1) and is parallel to y=-2/3x+1​

Answers

answer: y = -2/3x - 5

explanation: parallel slopes are the same, so the new equation would have a slope of -2/3. now, we have to find the y-intercept. to do this, plug in the x and y values for our new equation. we know that the standard form is y=mx+b, where b is the y-intercept.
-1 = -2/3(-6) + b
multiply
-1 = 4 + b
subtract 4 on both sides
-5 = b
so our new equation is
y = -2/3x - 5
you can check by plugging in the x-value (-6)
y= -2/3(-6) - 5
to get
y= -1
which makes this correct

I don't understand this, please help

Answers

Answer:

y=2x+1

Step-by-step explanation:

convert the given fractional number to percents 2/7​

Answers

Answer: 28.571429%

Step-by-step explanation:

2 divided by 7 is 0.2857142...

In order to make this a percentage you'll need to move the decimal two places to the right.

Help! how does the y- value change?

Answers

When the value of x increases, the value of y decreases and the graph slants downward.

What is the decimal 3.4 written in word form

Answers

Answer:

three and four tenths

Step-by-step explanation:

Julio says, "If you subtract 17 from my number and multiply the difference by -5, the result is
- 70." What is Julio's number?

Answers

Answer:

Julio's number is 31.

Step-by-step explanation:

Okay, so -70 divided by -5 is 14.

14 plus 17 equals 31.

If you subtract 17 from 31, you get 14.

Then, if you multiply 14 times -5, you get -70.

If y varies drectly with x
and y= 4.5 when x= 2.5,
what is y when x= 12?

Answers

You have to figure out what the difference is first , so we can se le that the difference between y and x will always be 2, we got this number by subtracting 4.5-2.5=2.
So we are given x which is 12 so in order to solve this you just substitute x with 2 in the next equation 12+x=y/ 12+2=14

can someone help me with this? i'll award brainiest :D

Answers

Answer:

About 79 boys i think

Step-by-step explanation:

:)

Which is the graph of y=2x-3?
Graph B
Graph C
Graph A

Answers

Answer:

its a

Step-by-step explanation:

Shelly and Terrence completed a different number of tasks in a game. Shelly earned 90 points on each task. Terrence's total points were 20 less than Shelly's total. The expression below shows Terrence's total points in the game:

90x − 20

What does the factor x of the first term of the expression represent?

Answers

Answer: Its B i think

Step-by-step explanation:

Which is not a prime number? A. 31 B. 47 C. 49 D. 53

Answers

Answer:

49 is not a prime number

Step-by-step explanation:

7 times 7 = 49

Answer:

C) 49

Step-by-step explanation:

Prime numbers are numbers that can only be factored into 1 and it's own number.

In the case of 49, it is a composite number.

Factors of 49: 1 , 7 , 49

1 x 49 = 49

7 x 7 = 49

49 x 1 = 49

~

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