Answer:
2x + 2.9 = 30.6
Step-by-step explanation:
We are to represent the unknown number that Mark thinks of with x
If Mark doubles this unknown number, he multiplies it by 2 and the unknown number becomes - 2x
He then adds 2.9
The equation becomes 2x + 2.9
The answer of the above equation is 30.6
This gives : 2x + 2.9 = 30.6
please only answer if you know the correct answer and answer all question please please please please please
Answer:
Part A: B) 3
Part B: $40
4. -1
7. 5x + 6y
8. Part A: y = 20x
8. Part B: $300
9. e > 12000 pounds
Step-by-step explanation:
Part A: x = 5t + 5
20 = 5t +5
15 = 5t
t = 3
Part B: x = 5t + 5
x = 5(7) + 5
x = 35 +5
x = 40
4. 24 - 5^2
24 - (5*5)
24 - 25 = -1
7. 2x + 4y + 5 + 2y - 5 + 3x
2x + 3x = 5x
4y + 2y = 6y
5 + (-5) = 0
5x + 6y
8. Part A:
Total = y
Lawns = x
Amount = $20
so y = 20x
8. Part B:
y = 20x
y = 20(15)
y = 300
9. The elephant weighs more than 12000 pounds
Elephant = e
More than = >
Pounds = 12000
e > 12000 pounds
Choose the correct answer: 15 is 3% of
(A) 1.5
(B) 2.5
(C) 500
(D) 5000
Answer:
c) 500
Step-by-step explanation:
3% = 0.03
multiply the decimal from of 3% by 500:
500 x 0.03
solve:
500 x 0.03 = 15
GIVING BRAINLIEST!
What is the slope of this graph?
Answer:
m = -1/2
Step-by-step explanation:
m = y1 - y2/x1 - x2
2 - 0/0 - 4
-2/4
Simplify
-1/2
Alyson opened a savings account with
$100. She saves $50 per month. Which
equation shows how many months, m,
Alyson will have to save to have a total of
$250 in her account?
Answer:
3 more months to get $250.
Step-by-step explanation:
She had 100 in her account. Thats 2 months. 3 months would give her 150 more dollars. So 100 + 150 = 250
Sixteen is 64% of what number?
12
48
32
25
A basketball player makes 75% of her free throws. If she made 84 free throws this season, how many has she attempted?
112
105
63
168
Answer:
the top one is 25
Step-by-step explanation:
the second one is 112
paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks. work out the total number of marks in the test
Answer:
115.2 total marks.
Step-by-step explanation:
If 72 is only 60% of the total marks, then to find the total number of marks we will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.
72 × 0.6 = 43.2 remaining marks.
72 + 43.2 = 115.2 total marks.
The total number of marks in the test is 115.2 total marks.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
We have been given that paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks.
When 72 is only 60% of the total marks, then to find the total number of marks.
We will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.
Then, 72 × 0.6 = 43.2 remaining marks.
72 + 43.2 = 115.2 total marks.
Hence, The total number of marks in the test is 115.2 total marks.
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James and Sarah went out to lunch. The price of lunch for both of them was $40. They tipped their server
10% of that amount.
How much did each person pay If they shared the price of lunch and the tip equally?
Each person pald
Answer:
20%
Step-by-step explanation:
Don needed 89% on his test to increase his overall letter grade. About how many of the 150 questions on the test did he need to answer correctly?
Answer:
134 questions
Step-by-step explanation:
150 x 0.89 = 133.5
i need help btw i am in middle school
Answer:
A). 459 B). x ≤ 6 C). $2.20 for one bowl
Step-by-step explanation:
Plz A total of 41 and 1/3 tons of gravel was split between four dump trucks. How many tons of gravel did each truck hold?
What is the slope of the line below?
Answer:
-1/2
Step-by-step explanation:
slope=rise/run
rise is up or down
run is right or left
5/-10= -0.5= -1/2 or -5/10= -0.5= -1/2
the answer is -1/2
Heather bought a CD on sale for $11
and a book for $14. The sales tax rate
is 5%. How much tax did she pay for
both items?
Answer:
Heather paid $26.25 for both items
Solve the inequality 18<-3(4x-2)
Answer:
Choice 1
Step-by-step explanation:
Answer:
x<-1 and Number 1
Step-by-step explanation:
:)
what percent of 120 is 57
The height of 16 members of a basketball team was measured and gathered in the table below. Find the value of a.
A. 4
B. 3
C. 1
D. 2
Answer:
question not clear. Where is the table?
AAAAAAAAAAAAAAAAA HELP
The school bus arrives late 2/7 of the time.
The probability that it rains during a hurricane is 1.
Let f(x)=x√x-4
What is the average rate of change of f(x) from 8 to 14?
Answer:
Avg rate of change =
[ f(14 ) - f(8) ] / [ 14 - 8 ] =
[ ( √ [14 - 4] ) - (√ [8 - 4]) ] / 6 =
[ √10 - √4 ] / 6 =
0.19
Rectangle garage length is 6.6 meters.The width is 6 times shorter then the length. What is the width?
Answer: width = 1.1 meters
Step-by-step explanation:
The length of Rectangle garage =6.6m
Width = 6 times shorter than length
Therefore width = 6.6/ 6
= 1.1 m
Answer:
1.1
Step-by-step explanation:
PLEASE HELP ASAP!!!!!!!
Sadie has been baking all weekend for her school's bake sale. She used 12 ounces of sugar to bake brownies. Then, she used 12 more ounces of sugar to bake cupcakes. Finally, she used 8 ounces of sugar to make frosting for the cupcakes. How many pounds of sugar did she use in all?
8x + 3 = ? What answer
Answer:
8x+3 is not factorable
Step-by-step explanation:
Nyasia had 16 M&M's on her desk. She had 2 groups of M&M's with x
amount in each, and another group with 4 M&M's. How many M&M's were
in the identical group?*
Answer:
12
Step-by-step explanation:
if one group has 4,and there are a total of 16,
16-4=12.
In each identical group, there are 6 each.
What angle has a degrees over 180?
Right
Rex
Straight
Acute
If Bob has 5 apples and he hasn't done his laundry how much time does it take him to find his ex?
help
Which of the following pairs of base and height produces the greatest area? All measurements are in centimeters.
(Remember, the area of a parallelogram can be found by multiplying the base \cdot⋅ height, A = b\cdot hb⋅h)
b=4, h=3.5
b=0.8, h=20
b=6, h=2.25
b=10, h=1.4
Answer:
second option: b = 0.8, h = 20
Step-by-step explanation:
areas are as follows:
14
16
13.5
14
Answer correctly !!!!!!!!! Will be marking Brianliest !!!!!!! URGENT URGENT !!!!!!!!!!!!!!!
Answer:
(5/2,2)
Step-by-step explanation:
3+2/2,0+4/2
5/2,4/2
5/2,2
(4,-4) is the answer
A population of rabbits doubles every 4 months. If the population starts out with 8 rabbits how many will there be in 1 year
Given:
The initial population of rabbit = 8
Population of rabbits doubles every 4 months.
To find:
The number of population in 1 year.
Solution:
The exponential growth model is
[tex]y=a(b)^x[/tex] ...(i)
Where, a is the initial population, b is growth factor, x is time period.
We know that,
12 month = 1 year
So, there are 3 time period of 4 months in an year.
Initial population of rabbit (a) = 8
Population of rabbits doubles every 4 months. So, growth factor is 2, i.e., b=2 and the time period is 3, i.e., x=3.
Putting a=8, b=2, x=3 in (i), we get
[tex]y=8(2)^3[/tex]
[tex]y=8(8)[/tex]
[tex]y=64[/tex]
Therefore, the population of rabbit in 1 year will be 64.
HELP!! 37 points ! and brainliest !!
What is the volume of the right rectangular prism?
A. 75m3
B. 125m3
C.200m3
D. 250m3
Answer:
250
Step-by-step explanation:
B times height = volume add the Base and the width at the bottom (10 times 5 =50) 50 is the B and then multiply by the height (5) so 50 times 5 is 250. Ez
Three sides of a kite measure 8 inches, 10 inches, and 8 inches. What is the perimeter of the kite?
A 26 inches
B. 28 inches
C. 34 inches
D. 36 inches
Answer:
26
Step-by-step explanation:
8+10+8=26
The Perimeter of the Kite whose dimensions 8 in., 10 in. and 8 in. is 26 inches.
What is the Perimeter of Kite?
A kite has two pairs of equal size. Total distance around the outside is called the perimeter of a kite. This distance can be found by calculating the sum of the lengths of each pair.
Here, the perimeter of kite = a + b + c
= 8 + 10 + 8
= 26 inches.
Thus, the Perimeter of the Kite whose dimensions 8 in., 10 in. and 8 in. is 26 inches.
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a lighthouse L is 40 km due north of a harbor H, a speedboat leaves H and travels on a bearing of 053 from H until it reaches a point P.
Point P lies on a bearing of 075 degrees from L.
calculate the distance traveled by the speedboat
Answer:
D
Step-by-step explanation:
Edg
Answer:
I have a document with examples, do you wanna it?
Step-by-step explanation: