Mathematics High School

I will give you brainilest!
In a day care group, nine babies are five months old and 12 babies are seven months old. How many full months from now will the average age of the 21 babies first surpass 20 months old?

Answers

Answer 1

Answer:

15 months

Step-by-step explanation:

in 15 months all of the baby's would have surpassed 20 months old, hope this helps!

Related Questions

MATH HELP WILL MARK BRANLIEST
In a certain Algebra 2 class of 21 students, 10 of them play basketball and 9 of them play baseball. There are 8 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?

Answers

Answer:

6/21 or 2/7

Step-by-step explanation:

on delta math

Mr. Arnold is buying dry-erase markers for his classroom. He already has 7 markers. Mr. Arnold buys 5 packs with 7 markers each and 8 packs with 4 markers each. He then throws away 2 markers that do not work. Which number sentence best represents how many dry-erase markers Mr. Arnold now has in his classroom?
7 + 5(7) + 8(4) – 2 g

7 + 5(7) + 8(4) – 2 f

7 – 5(7) + 8(4) + 2 e

7 – 5(7) + 8(4) + 2 d

7 – 5(7) + 8(4) – 2 c

7 – 5(7) + 8(4) – 2 b

7 + 5(7) + 8(4) + 2 a

Answers

Answer:

7 + 5(7) + 8(4) – 2 g

Step-by-step explanation:

Jim's parents keep a chart on the wall where they mark how much Jim grows each year. When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch. In total, how much did Jim grow in during those two years?

Answers

Answer: 3/4 inch

Step-by-step explanation:

When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch.

His growth during those two years will be:

= 1/4 + 1/2

= 1/4 + 2/4

= 3/4 inch

His growth increased by 3/4 inches.

find the slope of the line of best fit shown below.

Answers

The Answer is A, 1/2

REALLY NEED HELP
What is the slope of the given line??

Answers

Answer:

3

Step-by-step explanation:

slope is rise over run

6/2 simplifyed is 3/1 or just 3

In the diagram, △ABC∼△CDE. Write an equation for line k

Answers

Answer:

Step-by-step explanation:

Line AB is parallel to line CD (k) so they have the same slope.

slope=m=(y2-y1)/(x2-x1)

m=(6-0)/(4-0)

m=6/4=1.5

y=mx+b, we know m=1.5 so

y=1.5x+b, and we know it passes through point (4,0) so we can solve for b

0=1.5(4)+b

0=6+b

b=-6 so line k is

y=1.5x-6

What is the inverse (opposite) of subtraction?

Answers

Answer: Addition I think

A farmer sells 9.4 kilograms of pears and apples at the farmer's market. 2 5 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?

Answers

Answer: 6.9 kg

Step-by-step explanation:

Given

The combined weight of apple and pears is 9.4 kg

If pears weigh 2.5 kg

The weight of apples is the subtraction of pears weight from the total

[tex]\Rightarrow 9.4-2.5=6.9\ kg[/tex]

Thus, the farmer sells 6.9 kg of apples

Which system of equations is best represented by the graph?

Answers

Answer:

it's the first one

Step-by-step explanation:

since all of them go up to 8 on the graph it

the graph represents it going down since the first one is the only one to go down that one represents the graph precisely.

Need this !!!! Badly

Answers

Answer:

78

Step-by-step explanation:

Dan took out a 24-year loan for $111,000 at an APR 0f 7.7%, compounded monthly, while Forrest took out a 24-year loan for $96,000 at an APR of 7.7%, compounded monthly. Who would save more by paying off his loan 13 years early?

Answer: Dan Would save more Since he has $15,000 more in principal.

Answers

Answer: he would save15,000

Step-by-step explanation:

Can someone answer this

Answers

Irk i 4?! H/Xavier gg y. Ggbjg 674. Hh

Malia has $500 to purchase water bottles and pairs of socks for a fundraiser for her school’s cross-country team. She needs to buy a total of at least 200 items without buying too many of just one item. What graph shows the possible numbers of water bottles and pairs of socks that Malia should buy?

Answers

Answer:

graph ??? have u even tried to read the problem

Step-by-step explanation:

Yes I do please took

Could some one help me please

Answers

Answer:

12

Step-by-step explanation:

The answer is 12, because you just had to multiply

.
Sydney has a points card for a movie theater,
She receives 35 rewards points just for signing up.
She earns 5.5 points for each visit to the movie theater,
She needs at least 90 points for a free movie ticket.
Which inequality can be used to determine w, the minimum number of visits Sydney
needs to earn her first free movie ticket?

Answers

Answer:

35+5.5w>90

Step-by-step explanation:

35+5.5x>90

it would be this sign > but with a line under it..the amount of points she racks up can be greater or equal to 90

             

Miles read 4 books in the first half of March. By the end of March, the library had added Miles to the top-readers board for reading more than 10 books in a month.Let x represent how many books Miles read in the second half of March. Which inequality describes the problem?

Answers

Answer:

[tex]x>6[/tex]

Here, [tex]x[/tex] denotes number of books read by Miles in the second half of March

Step-by-step explanation:

Given: Miles read 4 books in the first half of March.

Also, Miles read more than 10 books in a month.

[tex]x[/tex] denotes number of books read by Miles in the second half of March.

To find: inequality that describes the problem.

Solution:

Total number of books read in month of March = Number of books read by Miles in the first half of March + Number of books read by Miles in the second half of March =  [tex]4+x[/tex]

Also, Miles read more than 10 books in a month.

Therefore,

[tex]4+x>10\\x>10-4\\x>6[/tex]

please help me (wrong answers get reported)

Answers

Answer:

pretty confident it's D. Also your in testnav gl

Step-by-step explanation:

Answer:

Ralph give out 10 lollipops every 5 days.

I need help on this question ​

Answers

Answer:

1. equal

2. add to 180

3. equal

4. add to 180

Step-by-step explanation:

as 1 and 3 are linear pairs

2 and 4 are vertically opposite angles

Solve: -4x = 20

A.) x = 5
B.) x = 24
C.) x = -5
D.) x = 16

Answers

Answer:

C.) x = -5

Step-by-step explanation:

-4x = 20

x = -5

-4(-5) = 20

Answer:

C) x=-5

Step-by-step explanation:

-4x=20

divide both sides by -4.....

-4x÷-4=20÷-4

x=-5

Charlotte and Riley walked 6/10 of a mile to school one day, and then after school they walked 3/8 of a mile to the store. From the store back home was another 2/5 of a mile. How far did the girls walk in all?

Answers

Answer: The girls walked [tex]1\dfrac38[/tex] miles.

Step-by-step explanation:

Given:  Distance from home to school = [tex]\dfrac{6}{10}[/tex] mile

Distance from school to store = [tex]\dfrac38[/tex] mile

Distance from store to home = [tex]\dfrac25[/tex] miles

Total distance = [tex]\dfrac6{10}+\dfrac38+\dfrac25[/tex]

= [tex]\dfrac{6\times4+3\times5+2\times8}{40}[/tex]   [L.C.M.(10,8,5)=40]

= [tex]\dfrac{24+15+16}{40}[/tex]

= [tex]\dfrac{55}{40}[/tex]

= [tex]\dfrac{11}{8}=1\dfrac38[/tex]  miles

Hence, The girls walked [tex]1\dfrac38[/tex] miles.

write each expression in simplest form



12c - c =

Answers

Answer:

11c

Step-by-step explanation:

12c-c=11c

It would look like this without the variable (just to make it easier to understand)

12-1=11

I’ll mark brainliest if correct :)

Answers

Answer:

x = -2

y = 9

Step-by-step explanation:

y = -3x + 3

y = 5x + 19

We can put one y as another:

-3x + 3 = 5x + 19

-8x = 16

x = -2

And now let's check using x = -2

y = (-3 * -2) + 3

y = (5 * -2) + 19

y = 6 + 3

y = -10 + 19

y = 9

y = 9

A clothing store offers a 30% discount on all items at the store. If the original price of a sweater is $40, how much will you pay for the sweater at the discounted price?

Answers

Answer:

x=1

Step-by-step explanation:

30% = .30 or .3

$40(.3)= 12

$12 is how much money you saved. So now just subtract 40-12.

$40-12= $28

The sweater will cost $28 dollars at discounted price.

answer both and i will give brianlist

Answers

Answer:

1. Perpendicular

2. y=5x+7

Step-by-step explanation:

brainliest please?

pls help with math !

Answers

Answer:

181 Square cm.

Step-by-step explanation:

The population of a town increased from 20,000 people to 25,000 people. What percent did the population increase?​

Answers

Answer:

The town population increase by 25%

Step-by-step explanation:

Btw can u please mark me brainliest, I need 3 more to rank up

Answer: 25%

Step-by-step explanation:

20000*1.25=25000

If someone wants to help me

Answers

Answer:

x=8

Step-by-step explanation:

=8

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

Mrs. Mobley can jog 3 miles in 27 minutes. How many miles can she jog in 81 minutes?

Answers

Answer:

9 miles

Step-by-step explanation:

You need to get 27 minutes to 81 minutes so you multiply 27 by 3, and that is 81, so you simply multiply 3 by 3 and get 9! Hope this helps! ;)

(27 x 3) = 81

(3 x3) = 9

The local pizzeria is charging $12.50 for a medium pizza with no toppings. Each topping costs $1.20 each. The variable, P, to represent the price and the variable, t, to represent the number of toppings. Which of the following models is correct?

a) P = 12.50t + 1.20

b) P = 1.20t + 12.50

c) t = 12.50P + 1.20

d) t = 1.20P + 12.50

Answers

Answer:

B is the correct answer!

Answer:

im thinking B

Step-by-step explanation:

Select no real solution, one real solution, or infinitely many real solutions for each of the following equations.
No Real Solution One Real Solution Infinitely Many Real Solutions
√x – 13=-4
2√x+10=8
2/x-1= 3/x+2

Answers

Answer:

one real solution

no real solution

one real solution

Step-by-step explanation:

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