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3 years ago

**Brainliest to best answer!!* Thank u to everyone who helps!

Mathematics

1 answer:

Dmitrij [34]3 years ago

7 0

Answer:

Step-by-step explanation:

When you read the question it says that her average speed from the library to the gym is 15 mph less than her speed from her home to the library. So x - 15 is what describes that situation.

If it is A it cannot be anything else.

B is incorrect. x - 15 is not a time. It is a rate. It can be used to develop the amount of time, but by itself it is still A.

C is incorrect. Her average speed from her house to the library is x

D is incorrect. The distance is given as the same as from her home to the library as from the library to the gym. Both are 4

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Consider the line y=9x-8

jasenka [17]

Answer:

y=9x+75

Step-by-step explanation:

since we know that the slope must be the same for two lines to be proportional, we are gonna start there.

so our equation is: y= 9x + b

we need to find b to complete our equation, so substitute in the points we were given.

3 = 9(-8) + b

so now,

3 = -72 + b

now we have to isolate b to find out what it is,

3 = -72 + b

+72 +72

so now: 75= b

Put that back into the starting equation: y = 9x + 75

7 0

3 years ago

Figure A is a scale image of Figure B. What is the value of x?

Arte-miy333 [17]

X=30
Put in proportions x/45 = 18/27.
Cross multiply and get 27x= 45 x 18
Or 27X = 810.
Next, divide by 27 on both sides to get X=30.

8 0

3 years ago

The Jones family and the Connor family both bought the same boxed package of sugar cubes at the store, in which the cubes were a

GrogVix [38]

Answer:

180

Step-by-step explanation:

At the beggining, it says they are stacked in 5 layers which means the number of cubes is divisible by 5.

If the number of cubes equals x:

The least amount of sugar cubes the Jones family could have used is $61*2$ which equals 122. The most they couldve used is $61*3$ which equals 183.

Based on the information from the Jones family, x is between 122 and 183.

Based on the information from the Connor's, x is between 176 and 264.

Based on the information from both, x is between 176 and 183. The only number that is divisible by 5 between those numbers is 180 cubes.

3 0

2 years ago

After a party there was 1/2 of a pizza leftover. If George gave 1/2 of the leftover to Olivia what fraction of the pizza did he

xeze [42]

Fraction leftover = 1/2

George gave (1/2) of the leftover to Olivia:

= 1/2 * 1/2

= 1/4

Fraction George gave to Olivia = 1/4

7 0

3 years ago

I need the assistance of smarter beings than I..... I'm so lost.....

alukav5142 [94]

Answer:

$\sf \bold{ 1 * (-3)^{n-1}}$

Explanation:

first term, a₁ = 1

difference between the terms: -3

used geometric formula : $\bold{\sf a_1 * (r)^{n-1}}$

<u>where "a₁ is first term" and "r refers to common difference"</u>

formula for this nth term: $\sf \bold{ 1 * (-3)^{n-1}}$

4 0

1 year ago

****Brainliest to best answer!!*** Thank u to everyone who helps!

**Brainliest to best answer!!* Thank u to everyone who helps!