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There are 12 boys and 15 girls in a class.
One boy and one girl will be selected to represent the class on the student
council.
Work out the total number of ways of choosing a boy and a girl.
(2 marks)
Answers
Answer:
180
Step-by-step explanation:
For each boy you choose, you choose one of the 15 girls.
This is the counting principle.
12 * 15 = 180
Answer: 180
A recipe for cookies calls for 2/3 of a cup of sugar. Elena used 5 1/3 cups of sugar to make multiple batches of cookies. How many batches did she make?
Answers
Answer:
8 batches
Step-by-step explanation:
A recipe for cookies calls for 2/3 of a cup of sugar. Elena used 5 1/3 cups of sugar to make multiple batches of cookies. How many batches did she make?
From the above question, 1 recipe = 1 batch of cookies
Hence:
2/3 cup of sugar = 1 batch of cookies
5 1/3 cups of sugar = x batches of cookies
Cross Multiply
2/3 cup × x batches = 5 1/3 cup × 1 batch
x batches = 5 1/3 cup × 1 batch/2/3 cup
x batches = 16/3 ÷ 2/3
x batches = 16/3 × 3/2
= 8 batches
Therefore she made 8 batches
Please help asap!! I will mark you as brainliest :)
Answers
Answer: 46
Step-by-step explanation:
Which of the following would be the best method for investigating the correlation between the hibernation habits of bears and the temperature for 90 days prior to their hibernation?
A. Survey
B. Observational study
C. Randomized experiment
D. Experimental study
Answers
Answer: Observational study
Step-by-step explanation: I just took the test
Answer:
observational study
You are buying a video game that is on clearence. The original price was $60. It is $42 off the original price.
What is the percent of change?
Is it an increase or a decrease?
Answers
Answer:
20%,decrease
Step-by-step explanation:
60-42=12
increase÷original×100
=12÷60x100
=20%
decrease
Is 7,10,13,16 a arithmetic sequence
Answers
Answer:
yes and the common difference is 3
Step-by-step explanation:
What two numbers are located 3/4 unit from 1/10 on a number line?
Answers
Answer:
-13/20 and 17/20Step-by-step explanation:
The numbers are either side from 1/10
To the left:
1/10 - 3/4 = 2/20 - 15/20 = -13/20To the right:
1/10 + 3/4 = 2/20 + 15/20 = 17/20(-2,-4) and (-1, -5)
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If this right can I get brain loser.
Answer:
sorry I am very sorry to say your question is incomplete. best of luck
During the Lantern Festival, the Chinese store sells lanterns for $ 8.88 each, including tax. The shop received a total of $106.56 from the sales of lantern one night. Write an equation that can be used to determine the number of lanterns, x, sold by the Chinese store that night. How many lanterns was sold?
Answers
Answer:
12 Lanterns.
Step-by-step explanation:
To find how many they sold in one night, divide 106.56 by 8.88 and you get 12.
a reflection of the pink triangle is shown. which transformation makes this reflection
Answers
Answer:
A reflection is a transformation representing a flip of a figure. Figures may be reflected in a point, a line, or a plane. When reflecting a figure in a line or in a point, the image is congruent to the preimage. A reflection maps every point of a figure to an image across a fixed line.
A student does daycare for 3 different families in the summer. The chart lists how much she charges each family per week.
Which equation can be used to model how much she charges each family every week?
m=80d
m=37d
m=40d
m=35d+10
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Answer:
Step-by-step explanation:
Help me on this plsss
Answers
Answer:
tried my best 2 help
Step-by-step explanation:
2.circumference = pi x diameter
c = pi x (8x2)
c= 50.2654824574
3. when measuring physical objects,
4. to find the length around an object such as your waist when buying a top ???? couldnt think of anything else
Can someone please help with this math problem
Answers
Answer:
pqr are similar tringle
Step-by-step explanation:
n=triangle are solve by n
bastahan na toh
Over 5 days, Rashid jogged 6.5 miles, 5 miles, 2 miles, 2 miles, and 4.5 miles. Find the mean distance that Rashid jogged
Answers
Answer:
4miles
Step-by-step explanation:
mean = (6.5+5+2+2+4.5)/5 = 20/5 = 4
help please lol yuhaaaaaas
Answers
Answer:
When you read the points on the graphs answer choice A is the only answer choice with all of the points grasped correctly.
Zara bought 150 pairs of shoes
for $6000 , She sold 100 of them
for $50 each and the remaining 50 for $55 each - How much profit
did she make altogether
Answers
required profit=$1750
cp=$6000
sp1=100×$50=$5000
sp of remaining sp2={150-100}×$55=50×55=$2750
profit={sp1+sp2}-cp=$5000+$2750-$6000=$1750
Select all the expressions that are equivalent to -90x+60.
A:-10(9x-6)
B:10(-9x+6)
C:30(-3x+2)
D:-10(9x+6)
E:-30(-3x+2)
Answers
Answer:A, B and C
Step-by-step explanation:
Hiya! Here's my question:
A baker uses 80 grams of salt for each batch of bread. Salt comes in a 32-kilogram package or a 1,700-gram package. Which size package should the baker buy so that no salt is left after all of the batches are made? Explain.
(I really need to answer this quickly, thanks! ^^)
Answers
wait i got it!
Since 18 kilograms are 18000 grams, you have
18000/30=600
and
800/30=26.6
So, with 18 kilograms of salt the baker can make exactly 600 batches with no leftovers, while with 800 grams of salt the baker can make 26 batches, with some leftovers.
In fact, 26 batches require
26 x 30 =780
grams of salt, and the remaining
800-780=20
grams of salt are not enought to prepare the next batch
Step-by-step explanation:
DO NOT SIMPLIFY YOUR ANSWERS
Sam owns a canoe rental company with 120 boats. He has 55 wood boats, and the rest are fiberglass. What is the ratio of...
fiberglass boats to wood boats?
total boats to fiberglass boats?
wood boats to other boats?
wood boats to total boats?
*answers are NOT TO BE SIMPLIFIED. YOU MUST use the colon key. . NO SPACES
Oulz saved
Answers
Answer:
Step-by-step explanation:
13/11,24/13,11/13,11/24
Answer:
65:55, 55:65, 55:120
Step-by-step explanation:
Fiberglass boats are = 65 because 120-55=65
Fiberglass to wood means that there is a 65:55 ratio because there are 65 fiberglass boats and 55 wood boats
wood to other, this is kind of a trick question, but its 55:65 because there are 65 other boats and 55 wooden boats
wood to total, this is 55:120 there are 55 wood boats and 120 total boats.
Help me it’s urgent
Answers
Answer:
35x16=560
Step-by-step explanation:
Answer:
2.19 i guess
Step-by-step explanation:
I don't really know the actual ans
An author receives $0.75 for each hardcover book or paperback book that is sold. There were x hardcover books and 42,000 paperback books sold of her most recent book. The author received a total of $60,000 for the book sales. The equation below can be used to determine the number of hardcover books that were sold. 0.75(x + 42,000) = 60,000. How many hardcover books were sold?
Answers
0.75x + 31,500 = 60,000
Subtract both sides by 31,500
0.75x = 28500
Divide both sides by 0.75
Answer = 38,000
Tessa is training for a marathon. She runs 13 km a day for 3 days. How many meters did Tessa run in all?
Answers
Answer:
39 km
Step-by-step explanation:
13 x 3 = 39km
Hope that helps!
Bruce saves $3 of every $5 he
earns. How much would he have
for spending if he earned $60?
Answers
Answer:
20
Step-by-step explanation:
:) hope it helps
what's the sum of 15+(-19)
Answers
-4
15+-19
15 to 19 is 4
19 is the larger than 15 so since 19 is negative your answer will also be negative
Form a sequence that has two arithmetic means between 13 and 88.
a.
13, 38, 63, 88
c.
13, 25, 25, 88
b.
13, 88, 163, 238
d.
13, 50.5, 88
Answers
Answer:
a.13,38,63,88
Step-by-step explanation:
they have the same common difference which is 25
9) A cow is tethered with a rope 20 ft long. What is the maximum area the cow can graze?
Answers
Answer:
If the rope is 20 ft long, then the maximum area the cow can graze is:
[tex]\pi \\[/tex]r^2 square feet.
[tex]\pi[/tex] is approximately 3.14, so that means we have: 3.14(20^2) = 1256 ft squared.
Thus, the maximum area that the cow can graze is 1256 ft squared.
Let me know if this helps!
The cow's maximum grazing area is 1256 ft squared. The grazing area is found as the area of the circle.
What is the area?The space filled by a flat form or the surface of an item is known as the area.
The number of unit squares that cover the surface of a closed-form is the figure's area. Square centimeters and other similar units are used to measure area.
If the rope is 20 feet long, the cow can graze the following area:
A=πr²
A=3.14(20)²
A=1256 ft squared.
As a result, the cow's maximum grazing area is 1256 ft squared.
To learn more about the area, refer to the link;
https://brainly.com/question/11952845
#SPJ2
A watermelon weights 6.45 kilograms. How many grams does the watermelon weigh?
Answers
Answer:
6450
Step-by-step explanation:
Answer:
6450
Step-by-step explanation:
Multiply the value by 1000.
Name two pairs of alternate exterior angles.
Answers
What are the coordinates of point A?
A. (2, 4)
B. (1.7, 3.8)
C. (6.6, 1.7)
D. (3.8, 1.7)
Answers
Answer:
b
Step-by-step explanation:
Find the 50th term of this arithmetic sequence:
2, 5, 8, 11, ...
Answers
Minus 3 from 2 to get 0th term
So 3n-1 substitute 50 for n
150-1 is 149