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Stels [109]
3 years ago
11

I Nisa buy dollars worth of stock and gained $25 per year Kevin bad for hundred dollars worth of stock in the last $35 per year

does ask for time and wife. Value graph the equation is that represent each situation when did any certain kids have the same Y equals 100+25X y equals 400-35 minutes
Mathematics
1 answer:
alisha [4.7K]3 years ago
4 0

Answer: x= 5 years and y = $225

Step-by-step explanation:

Since we have given that

Amount Nisa gained per year = $25

Amount Kevin lost per year = $35

According to question,

y=100+25x\\\\and\\\\y=400-35x

so, it becomes,

100+25x=400-35x\\\\25x+35x=400-100\\\\60x=300\\\\x=\frac{300}{60}\\\\x=5

so, For x= 5 years,

Their income of Nisa and loss of Kevin will be

y=100+25x\\\\y=100+25\times 5\\\\y=100+125\\\\y=\$225

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A new youth sports center is being built in a safe harbor. The perimeter of the rectangular playing field is 510 yards. The leng
podryga [215]

Answer:

<h2>L=203 yards</h2><h2>W=52 yards</h2>

Step-by-step explanation:

Step one:

given data

perimeter= 510 yards

let the width be x, width=x

length= (4x-5)-----quadruple mean 4 times

Step two:

the expression for perimeter is

P=2L+2W

510=2(4x-5)+2x

510=8x-10+2x

510+10=8x+2x

520=10x

divide both sides by 10

x=520/10

x=52

the width is 52 yards

the lenght is  (4x-5)

L=4(52)-5

L=208-5

L=203 yards

4 0
3 years ago
Please solve these step-by-step!!
Ierofanga [76]

Answer:

For D. X= 3, or 0 but probably not 0

For the 2nd picture you sent,  x= -2, or -3

Step-by-step explanation:

So for D. you want to make sure you only have 1 Variable, and since we know y=x squared + 7x+5, we subsitute y for what it is equal to.

Then we refine the question, which takes it out to

x squared-3x+5=5 (because the 7x-10x = 3x)

We subtract 5 from both sides which leaves us with x Squared - 3x= 0

Which we then solve with the Quadratic formula. and we separate the solutions to get the different answers for 3, and 0

3 0
2 years ago
What is 50,779 divided by 590? Attach work pretty plz
nignag [31]
50,779/590 is 90.7125 but rounded to 90.71
6 0
3 years ago
A rectangle is twice as long as it is wide. If its length and width are both
puteri [66]

Answer:

a rectangle is twice as long as it is wide . if both its dimensions are increased 4 m , its area is increaed by 88 m squared make a sketch and find its original dimensions of the original rectangle

Step-by-step explanation:

Let l = the original length of the original rectangle

Let w = the original width of the original rectangle

From the description of the problem, we can construct the following two equations

l=2*w (Equation #1)

(l+4)*(w+4)=l*w+88 (Equation #2)

Substitute equation #1 into equation #2

(2w+4)*(w+4)=(2w*w)+88

2w^2+4w+8w+16=2w^2+88

collect like terms on the same side of the equation

2w^2+2w^2 +12w+16-88=0

4w^2+12w-72=0

Since 4 is afactor of each term, divide both sides of the equation by 4

w^2+3w-18=0

The quadratic equation can be factored into (w+6)*(w-3)=0

Therefore w=-6 or w=3

w=-6 can be rejected because the length of a rectangle can't be negative so

w=3 and from equation #1 l=2*w=2*3=6

I hope that this helps. The difficult part of the problem probably was to construct equation #1 and to factor the equation after performing all of the arithmetic operations.

5 0
3 years ago
HELP PLS HELP, DUE IN 10 MINUTES
amid [387]

Answer:

A.  26.10 cm

B. 118.95 cm

Step-by-step explanation:

ST = 41^2 - 40^2 =  c^2  = hypotenuse

ST = 1681 - 1600 = c^2

ST = c^2 = sq rt 681 =26.0959767014 = 26.1cm

Nearest 100th = 26.10

Length = 26.10 cm to nearest 100th

Perimeter of RSU we find (M) of SU first then add that to the other 3 lengths on the exterior of the triangle.

SU = 10^2 + 26.1^2 = c^2 = hypotenuse

SU = 100 + 681.21 = c^2

SU = c^2 = sqrt 781.21 = 27.9501341678 = 27.95cm

P TOTAL RSU  = SU + TR + RS + TU

= 27.95 + 40+ 41 + 10 = 118.95cm

5 0
3 years ago
Read 2 more answers
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