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SOVA2 [1]
3 years ago
6

When solving the equation such as 2/3x = 4/5 , why would you multiply both sides of the equation by the reciprocal of 2/3 ?

Mathematics
1 answer:
barxatty [35]3 years ago
7 0
Answer: Well you’re solving for “x,” so you’ll need to isolate this variable. This means we need to “get rid of” the fraction 2/3 that is attached to it. The faction is attached by the operation multiplication, so to remove it we must divide it on both sides. And division with fractions requires the reciprocal. (Try watching an explanation if you’re confused on why division requires reciprocals).
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When point B (5, -1) is rotated 180º about the origin, its coordinate becomes (-5, 1).
Shtirlitz [24]

When a point (x,y) rotated 180⁰ about origin, the new point will be (-x, -y).

So,

if we have (5, -1), it should become (-5, 1).

So,

answer is true.

7 0
3 years ago
James currently has $215 in a savings account. Every month, he deposits an additional $45 into his account. James had to replace
Romashka-Z-Leto [24]

Answer:

James still owes 1,261 dollars after 12 months

Step-by-step explanation:

<u>Second attempt :P</u>

James currently has 215 dollars, every month for 12 months, he deposits 45 dollars into his account

215 + 12 x 45

215 + 540 =755

Now we know how much money James will have after 12 months,  we need to find out how much he will owe.

James has to pay 168 per month for 12 months

168 x 12 = 2016

After 12 months the total amount James owes will be 2,016 dollars.

He makes 755 for the whole 12 months

2,016 - 755 = 1,261

James still owes 1,261 dollars after 12 months

6 0
3 years ago
Which represents a quadratic function?
sweet-ann [11.9K]

Answer:

f(x) = 8x² + 2x - 5

Step-by-step explanation:

I think you meant to put an 8 instead of *.

Anyways, f(x) = 8x² + 2x - 5 is a quadratic function because there is 8x² in the function.

If this answer is correct, please make me Brainliest.

6 0
3 years ago
Jackson is interested in the number of memories people can recall. He knows that the number of memories recalled is normally dis
Nataly_w [17]

Answer:

my name is jackson

Step-by-step explanation:

and i dont think this

Lies.

Blasphemy.

Begone.

7 0
3 years ago
Bone-shaped treats are 5 for $3.50 at Shelley's store and Sarah wants to buy 12. She set up and solved this proportion to find h
Molodets [167]

Answer:

Her error was multiplying numerator by numerator ( that is Quantity of Bone-shaped treats)

Step-by-step explanation:

Sarah's calculation

Let

x = cost of 12 Bone-shaped treats

Quantity of Bone-shaped treats : price

5 : 3.5 = 12 : x

(5/3.5) = (12/x)

Cross product

3.5x=60 (Here is her error)

x=17.14

Correct calculation

Quantity of Bone-shaped treats : price

5 : 3.5 = 12 : x

5 / 3.5 = 12 / x

Cross product

5 * x = 3.5 * 12

5x = 42

x = 42 / 5

= 8.4

x = $8.4

Her error was multiplying numerator by numerator ( that is Quantity of Bone-shaped treats)

Instead of multiplying Quantity of Bone-shaped treats by cost

7 0
3 years ago
Read 2 more answers
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