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3 years ago

Solve the equation shown: 2.5x + 18 = 3.5% - 4

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

5 0

the answer is: x=−5.8

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At a grocery store, you want to buy 3 3/5 lb of . What decimal should the digital scale show?

nasty-shy [4]

Answer:

3.6 lb

Step-by-step explanation:

to find the decimal of a fraction, you simply divide the numerator by the denominator. 3 divided by 5 equals 0.6, which is added to the end of your whole number.

4 0

3 years ago

The number of customers for a new online business can be modeled by y = 8x2 + 100x + 250, where x represents the number of month

kenny6666 [7]

The best prediction for the number of customers is 5450.

To find this value, you just need to plug in 20 for x into the expression. Then, evaluate it using the order of operations.

8(20)^2 + 100(20) + 250
8(400) + 100(20) + 250
3200 + 2000 + 250
5450

3 0

3 years ago

Abby is surveying people in the city about their interest in a new shopping mall. She found that 180 people, or 37.5% of those s

Harlamova29_29 [7]

Step-by-step explanation:

37.5% = 180people

100% = 180/37.5 x 100 = 480

answer: 480 people

Topic: percentage

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

6 0

2 years ago

Pls help pls help pls help

Volgvan

Answer:

A. y=1-2x

Step-by-step explanation:

-1 =1-2(1)

-1= 1-2

-1=-1

-3=1-2(2)

-3=1-4

-3=-3

-5=1-2(3)

-5=1-6

-5=-5

-7=1-2(4)

-7=1-8

-7=-7

5 0

2 years ago

NO LINKS!!!! Find the equation of the circle below

inysia [295]

Answer:

$(x+3)^2+(y-2)^2=9$

Step-by-step explanation:

Equation of a circle

$(x-a)^2+(y-b)^2=r^2$

where:

(a, b) is the center
r is the radius

From inspection of the diagram, the center of the circle appears to be at point (-3, 2), although this is not very clear. Therefore, a = -3 and b = 2.

Substitute these values into the general form of the equation of a circle:

$\implies (x-(-3))^2+(y-2)^2=r^2$

$\implies (x+3)^2+(y-2)^2=r^2$

Again, from inspection of the diagram, the maximum vertical point of the circle appears to be at y = 5. Therefore, to calculate the radius, subtract the y-value of the center point from the y-value of the maximum vertical point:

⇒ radius (r) = 5 - 2 = 3

Substitute the found value of r into the equation:

$\implies (x+3)^2+(y-2)^2=3^2$

Therefore, the final equation of the given circle is:

$\implies (x+3)^2+(y-2)^2=9$

7 0

1 year ago

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