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saveliy_v [14]
3 years ago
5

Can u guys PLEASE answer question g. THIS IS URGENT

Mathematics
2 answers:
ivann1987 [24]3 years ago
7 0

Answer:

Laura is 8

Step-by-step explanation:

let Laura's age now be x then Daniel's age is 2x

4years ago

Laura was x - 4 and Daniel 2x - 4, thus

2x - 4 = 3(x - 4) ← 3 times Laura's age

2x - 4 = 3x - 12 ( subtract 2x from both sides )

- 4 = x - 12 ( add 12 to both sides )

8 = x

Thus Laura is 8 years old

allsm [11]3 years ago
7 0

Answer:

8 years

Step-by-step explanation:

Daniel's current age: D

Laura's current age: L

D = 2L (1)

D - 4 = 3(L - 4) (2)

(2) D - 4 = 3L - 12

D = 3L - 8

(1) 3L - 8 = 2L

L = 8

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You are told to you will have to wait 5 hours in a line with a group of other people. Determine it. 1.You know the number of min
gulaghasi [49]

Answer:

for\ five\ hours = 300\ min

Step-by-step explanation:

Given:

Waiting time = 5 hours.

We need to find the number of minutes for 5 hours.

Solution:

We know that 60 minutes for each hour, so one hour is equal to 60 minutes.

For one hour = 60\ minutes

For five hours = 5\times 60

for\ five\ hours = 300\ min

Therefore, you will have to wait 300 minutes in a line.

3 0
3 years ago
A radio is being discounted 20% if the sale price of the radio is $51.44 what is the original price of the radio Radio is being
Grace [21]
Original price of the radio is $64.30

Sale price - $51.44
Discount rate - 20%

This means that $51.44 is the discounted price or is equivalent to 80% of the original price, since the 20% equivalent is deducted from the original price.

To get the original price, divide $51.44 by its corresponding percentage, 80%.

$51.44 / 80% = $64.30

To get the discount, multiply the original price by its discount rate

$64.30 x 20% = $12.86

To get the sales price, deduct the discount from the original price.

$64.30 - $12.86 = $51.44
100% - 20% = 80%

6 0
3 years ago
The Cooking Club made some pies to sell during lunch to raise money for a field trip. The cafeteria helped by donating two pies
monitta

Answer: 7 pies

Step-by-step explanation: Since the club split the pies into 5 pieces and then had a total of 45 slices, you would first divide 45 by 5 and you would get 9. The question stated that the cafeteria gave 2 pies and they are asking how much the club made. So you would subtract 9 by 2 to get 7. This concludes to that the club made 7 pies in total. Hope that helps!

5 0
3 years ago
Simplify.<br><br> (4w + 3) – 2w + 7<br><br> 2w + 10<br> 2w - 10<br> 6w + 10<br> 6w - 10
7nadin3 [17]
Hey there,

2w+10 would be the best choice here.
Sorry if I'm wrong, good luck!

:)
3 0
3 years ago
What is the function of this graph?
Lesechka [4]

Answer:

x=y^2-2

Step-by-step explanation:

This graph, is a parabola that opens to the right.

To answer this question, we just use the vertex form of a sideways parabola- x=a(y-k)^2+h.

In this case, the vertex is (-2, 0), and our value of a is 1, since it opens to the right.

This gives us: x=1(y-0)^2+(-2)

Which simplifies to: x=y^2-2.

Also, the answer to the previous two questions are wrong.

The D value (Domain) is actually [2, ∞)

The R value (Range) is actually "All real numbers" (-∞, ∞)

Let me know if this helps!

3 0
3 years ago
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