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Airida [17]
3 years ago
7

I need help its a review form a few years ago i cant rember pls answer both

Mathematics
1 answer:
nalin [4]3 years ago
3 0

Answer:

u didnt add the picture

Step-by-step explanation:

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Amy is eight years older than twice her cousin Alicia’s age. The sum of their ages is less than 32. Let x represent Alicia's age
Vladimir [108]
Assume that the age of Alicia is x and that of Amy is y
Twice the age of Alicia = 27
Eight years older means we will add 8
Therefore, the statement "<span>Amy is eight years older than twice her cousin Alicia’s age" can be represented as follows:
y = 8 + 2x (equation)
The sum of their ages is less than 32 can be represented as:
x + y < 32 which can also be written as y < 32-x (inequality)
</span>
7 0
3 years ago
-3(6) + 2(3) - 18 = 6<br><br>Is this incorrect or correct and why ?​
KiRa [710]
It is incorrect because when you times a negative by a positive. It is a negative number.
6 0
3 years ago
Juan has twice as much money as Blanca, Blanca has 1/5 as much as Ronaldo. Together, they have $500. How much money does Juan ha
PolarNik [594]
Ronaldo has five times blancas amount
Juan has twice the amount
Plus blancas one times her amount that is 8 time blances amount. If Blanca has 1/8 of 500 then Juan has 1/4 and 1/4 of 500 is 125
3 0
3 years ago
a globe has a diameter of 24 inches. a smaller globe has a diameter of 18 inches. What is the surface are to volume ratio of the
faust18 [17]

Answer:

1 pi: 3pi

Step-by-step explanation:

Step 1: Formula of surface area and volume of sphere

Surface area of sphere = 4 x pi x r^2

Volume of sphere = <u>4</u> x pi x r^3

                                 3

Step 2: Apply values in the formula

r = radius

radius = diameter/2

r=18/2 = 9

S.A = 4 x pi x 9^2

S.A = 324pi

Volume = <u>4</u> x pi x 9^3

                3

Volume = 972pi

Step 3 : Show in ratio

Surface area : Volume

324pi : 972pi

= 1 pi: 3pi

6 0
3 years ago
How to expand 3(2t+1)
Vlada [557]
Hey there :)

3 ( 2t + 1 )
We use what is called the distributive property to get rid of the parenthesis

We multiply the term outside the parenthesis by all terms inside
3 ( 2t ) + 3 ( 1 )

6t + 3 → Your answer
8 0
3 years ago
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