Answer:
Step-by-step explanation:
Proportion of type O donors = 37/(37+43) = 37/80
300 × 37/80 = 138.75
139 donors out of 300 are type O.
A ratio shows us the number of times a number contains another number. The number of type O donors out of 300 is 139.
What is a Ratio?A ratio shows us the number of times a number contains another number.
Given that the ratio of type O to non-type O donors at a blood drive was 37:43. Therefore, the number of type O blood donors be represented by 37x and the number of non-type O blood donors be represented by 43x.
Now, the sum of type and non-type O donor is 300. Therefore, we can write,
37x + 43x = 300
80x = 300
x = 3.75
Further, the Number of type O donors out of 300 can be written as,
Number of type O donors out of 300 = 37x = 37(3.75) = 138.75 ≈ 139
Hence, the number of type O donors out of 300 is 139.
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Janelle (age 12 ) and her cousin, marquita (age14 ) , go to 7:00 P.M show generate an equivalent expression for the total cost of admission. What is the total cost
Answer:
The answer is "$13".
Step-by-step explanation:
The entrance fee for a show is [tex]\$8[/tex] for an adult, [tex]\$5[/tex] for children under 13, and [tex]\$3[/tex] for matinees (before 6 pm).
In our event, Janelle is a child as she's underneath the age of 13 who pays [tex]\$5[/tex] while she's an older person and therefore she's going to pay [tex]\$8[/tex].
[tex]\$ 8 + \$ 5 = \$ 13[/tex], therefore the overall cost for the show is 13 dollars
please help to find a5 from the above question
Answer:
hope it helps..........
Joan deposits $20,000 into a savings account that pays 4% annual interest compounded monthly. What will be the value of her deposit in 8 years?
Answer:
C jvbivy yvibiv
Step-by-step explanation:
Ctcyvu
Sean pays £10 for 24 chocolate bars. He sells all 24 chocolate bars for 50p each.
Work out Sean's percentage profit.
Answer:
the percentage profit is 20%
Step-by-step explanation:
Given that
Sean paid £10 for 24 chocolate bars
He sold all 24 chocolate bars for 50p each
we need to find out the percentage profit
Since he paid £10 and sale value is (24 × 0.50) i.e. £12
So, the percentage profit is
= (£12 - £10) ÷ (£10)
= 20%
Hence, the percentage profit is 20%
What is the slope ?
15x-3y = 18
Answer:
5
Step-by-step explanation:
To find the slope, you need to solve for y
So subtract 15x from both sides
-3y=-15x+18
Divide by -3
y=5x-6
The slope is 5
Answer:
5
Step-by-step explanation:
Because I is smart
Lol, give other person brainliest, they deserve it
a trader needs $300000 to improve her business, she deposits $110000 in her savings account at 5% per annum compound interest. she then adds $50000 to her savings at the end of each year find
(a) her total savings after 3 years.
(b)by how much is her savings greater or less than $300000 at the end of the third year
interpret it that there are three payments of 50,000 aside from the current deposit of 110,000
amount after 3 years
= 110,000(1.05)^3 + 50,000( 1.05^3 - 1)/.05
Which expression is equivalent to 17s-10+3(2s+1)?
O 23s-9
O 23s-7
O 11s-7
O 11s-9
Answer:
23s-7
Step-by-step explanation:
17s-10+3(2s+1)
17s-10+6s+3
23s-7
Plssss help. High school mathematics
Help!
Last week, Jonathan ran 15 less miles than Andre. Jonathan ran a total of 43 miles. Write an equation to represent how many miles Andre ran last week?
Which answer choice shows that the commutative property does not hold for matrix multiplication?
Given:
The matrix statements in the options.
To find:
The answer choice that show the commutative property does not hold for matrix multiplication.
Solution:
We known that matrix multiplication is not commutative. if A and B are two non-zero matrices, then
[tex]AB\neq BA[/tex]
Let us assume,
[tex]A=\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}\text{ and }B=\begin{bmatrix}1&3\\8&5\end{bmatrix}[/tex]
According to the above property of the matrix, we get
[tex]\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}\begin{bmatrix}1&3\\8&5\end{bmatrix}\neq \begin{bmatrix}1&3\\8&5\end{bmatrix}\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}[/tex]
Therefore, the correct option is B.
this is your correct answer
.
What is the perimeter of this tile?
3 in.
3 in.
Answer:
I think it's 12
Step-by-step explanation:
7. Giovanni made the design below for an art project. What is the area of the drawing? 13 in. 5 in. 4in.
Answer:
75 in^2
Step-by-step explanation:
Given data
From the figure
We can see a rectangle and a triangle
The area of the rectangle is
Area= L*W
Area= 13*5
Area= 65 in^2
Area of the triangle
Area= 1/2b*h
Area= 1/2*4*5
Area= 2*5
Area= 10 in^2
Hence the area of the composite figure is
Area= 65+10
Area= 75 in^2
Analia is a school district manager. Here are some details about two schools in her district for the last school year:
School A School B
Number of students 300030003000 400040004000
Number of teachers 190190190 380380380
Graduation rate 86\%86%86, percent 90\%90%90, percent
Budget per student \$10{,}500$10,500dollar sign, 10, comma, 500 \$10{,}000$10,000dollar sign, 10, comma, 000
% of students in sports club 62\%62%62, percent 68\%68%68, percent
Number of sports medals won 999 777
SAT average 120012001200 105010501050
SAT range (max-min) 900900900 700700700
Analia wants to know which school has the lower SAT range relative to the resources invested per student (lower, as SAT range is a measure of inequality, which we want to minimize as much as possible).
1) Analia thought of two different ways to define this quantity. Identify these two definitions among the following options.
Find the area of a sector of a circle with radius 7 cm and and central angle 240°.
Answer:
103 cm^2
i just took the quick check
Can someone please help me
Answer:150
Step-by-step explanation: If you see the highest point in the number line. You can see it’s in the middle of of 140 and 160 so it’s 150
Helpppppp againnn plzzz
Answer:
x=8.17
Step-by-step explanation:
uztstskycuvkhifig
Answer:
x = 8.17
Step-by-step explanation:
We will be using pythagoras theorem:
[tex]a^{2} + b^{2} = c^{2}[/tex]
=> [tex]4.25^{2} + x^{2} = 9.21^{2}[/tex]
=> [tex]x^{2}[/tex] = 84.8241 - 18.0625 = 66.7616
=> x = [tex]\sqrt{66.7616}[/tex] = 8.17077719.. = 8.17 (3 s.f)
A 50 foot ladder is set against the side of a house so that it reaches up 30 feet. If
Alonso grabs the ladder at its base and pulls it 5 feet farther from the house, how far
up the side of the house will the ladder reach now? (The answer is not 25 ft.) Round
to the nearest tenth of a foot.
Answer:
21.8
Step-by-step explanation:
A cube has edges of 1/4 inch what is the surface area of the cube? Use the formula V=6s2
Step-by-step explanation:
Consider matrix A.
What is the inverse of A? Fill in the missing elements in the matrixs.Consider matrix A.
What is the inverse of A? Fill in the missing elements in the matrixs.ninja power
Find the volume of a cone with a radius of 6 centimeters and a height of 15 centimeters. Round your answer to the nearest tenth.
Answer: 565.3 cubic cm
Step-by-step explanation:
V= 1/3Bh
V= 1/3π r^2h
= 1/3 π (6 cm) ^2 (15 cm)
= 1/3 π (36 cm squared) (15 cm)
= 180π cubic cm
about 565.2 cubic cm
π is about 3.14
The value of the volume of a cone with a radius of 6 centimeters and a height of 15 centimeters is,
⇒ 565.2 cubic cm
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
In cone,
Radius = 6 cm
Height = 15 cm
Now, We know that;
Volume of cone is,
V = 1/3π r²h
Substitute all the values we get;
V = 1/3 π (6 cm)² (15 cm)
V = 1/3 π (36) (15)
V = 180π
V = 565.2 cubic cm
Thus, The value of the volume of a cone with a radius of 6 centimeters and a height of 15 centimeters is,
⇒ 565.2 cubic cm
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*EXTRA PTS* pls answer all 3 :)
Answer:
5, x = 0, y = -2
6, x = 4, Y = 9
7, X = -2, Y = -2
Step-by-step explanation:
Yo guys help pls.pls pls
Answer:
A rectangle is a parallelogram because parallelograms have to have exactly 2 pairs of parallel sides. A rectangle has 2 parallel sides, therefore it is considered a parallelogram.
Step-by-step explanation:
M
Just answer it my guy
Answer:
96 m^2
Step-by-step explanation:
1. Multiply base x height
12 x 16 = 192
2. Divide by half
192/2 = 96
Benny plant grew 16.8 centimeters this year. The plant grew the same amount each month. How much did the plant grow each month?
Answer:
1.4 centimeters each month
Step-by-step explanation:
we know that there are 12 months in a year. if the plant grew 16.8 centimeters in one year, you would have to divide 16.8 by 12 so your equation would be:
16.8/12 = 1.4
Please help me with this.
(NO FILES OR LINKS AS YOUR ANSWER, I CAN'T DOWNLOAD THEM)
Answer: The expressions 11(x+y) and 11x+11y
Which expression is equivalent to 2 3/5 divided by 7/9?
Step-by-step explanation:
[tex]2 \frac{3}{5} \div \frac{7}{9 } \\ \frac{13}{5} \times \frac{9}{7} \\ = \frac{117}{35} [/tex]
Explain how you would find the length of one side off a square if the area is 16 square units please HELP
Answer:
area = length x width 4x4 = 16
side lengths are 4
Step-by-step explanation:
12m +8 – 5m + 2 + m = 6(m + 1)
m =
Answer:
m = −2
Step-by-step explanation:
Give me brainllest or お前はもう死んでいる
Answer:
m=-2
Step-by-step explanation:
Brownies, b are 30 more than half the calories of a piece of cake c, write an equation
Answer:
b = 30 + c ÷ 2
Step-by-step explanation:
b = brownies
c = cake
PLEASE HELP FAST!!!
The table shows the percentage of students in each of three grade levels who list soccer as their favorite sport.
Soccer
Sophomores (35%) 50%
Juniors (33%) 45%
Seniors (32%) 30%
Total (100%) (0.5)(0.35) + (0.45)(0.33) + (0.32)(0.3) = 0.4195 or about 42%
Find the probability, rounded to the nearest hundredth, that any student selected from all three grades is a junior who lists soccer as the favorite sport.
P(junior ∩ soccer) =
A) 0.45
B) 0.78
C) 0.52
D) 0.15
Answer: a is your answer hope this helped
plz make brainly
Step-by-step explanation:
Answer:
0.45
Step-by-step explanation:
Find the DIAMETER if the circumference of a circle is 64.7
Answer:
20.6
Step-by-step explanation: