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Oduvanchick [21]
2 years ago
14

Spencer can do a piece of work in 20 days and Toby in 25 days. They began to work together.

Mathematics
1 answer:
Verdich [7]2 years ago
8 0

I believe the answer is that Spencer left after 9 days.

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A school is planning an event to raise $1,000 for charity. The cost of organizing the event is $200. The tickets are priced at $
Leviafan [203]
Here is how to solve this question.


Since x represents children and y represents adults.

1,000 = (6x+8y) - 200     

6x + 8y = 1,000 + 200


6x + 8y = 1,200  


1,000 = 8y - 200


1,000 + 200 = 8y


1,200 = 8y


1,200/8 = 8y/8


150 = y

 
150 adults need to attend for the organizers to raise the targeted amount.


Happy studying ^-^
5 0
3 years ago
Simplify the expression using the exponent properties 5 ^ −4 x 5^ −3
vodka [1.7K]

Answer:

5^{-7} or 0.0000128

Step-by-step explanation:

Add the exponents together

-4+-3=-7

3 0
3 years ago
It takes 28 minutes for 7 people to paint 7 walls.
Ber [7]

Answer:

it would take 28 minutes

8 0
3 years ago
Find the distance and midpoint for the following coordinates.<br> P(7.6 , 10.1) and Q(4.6 , 3.1)
KATRIN_1 [288]
Solving for the midpoint:

x - coordinate: (7.6 + 4.6)/2 = 6.1
y - coordinate: (10.1 + 3.1)/2 = 6.6

Midpoint: (6.1 , 6.6)

Solving for the distance:

Distance formula: sqrt( (x2 - x1)^2 + (y2 - y1)^2 )

D = sqrt( (7.6 - 4.6)^2 + (10.1 - 3.1)^2 <span>)
D = sqrt( 3^2 + 7^2)
D = sqrt(58)
D = 7.62 units

Distance = 7.62 units</span>
8 0
3 years ago
Someone please help me with this!!
Paraphin [41]

PEMDAS tells us to use multiplication and division before addition and subtraction.

<u>-5(8) </u>÷ 10 - <u>14 ÷ 7</u> - <u>(-2)(3)</u>

<u> -40  ÷ 10</u> -     2    -   -6

     <u>-4       -    2 </u>     + 6    <em>two negatives make a positive so - - 6  = + 6</em>

           <u> -6              +6</u>

                      0

Answer: 0


3 0
3 years ago
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