Mathematics CBRC Solve problems

94問 • 2年前

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A 10 meter board board leans against the wall. The foot of the board is 8 meters from the wall. How many meters of the board up the wall?

6 meters

A ball is drawn at random from a box containing 6 red balls, 4 white balls and 5 blue. What is the probability to get a white ball?

4/15

A company supervisor had incurred the following expenses in his trips to Vigan: P3, 200.00; P2, 800.00; P2, 500.00 and P1, 500.00. How many percent he spent of his total monthly budget of P40, 000.00 for his trip?

25%

A pair of shoes originally priced at Php 600 is being sold at a discount of 30%. How much you pay of you buy those shoes?

420

A picture frame is 26 cm long and 18 cm wide. The ratio of its length to its width is

3:2

A recipe calls for 2 eggs for every cup. If a head chef uses 28cups of floor. How many eggs he will need?

56 eggs

A water pipe which is ten feet long was cut into two with the shorter part measuring 2.5 feet. The ratio of the smaller art to the larger part is

1:3

A water tank contains 8 liters when it is 20% full. When it is 75%, how many liters contain it?

30 liters

An isosceles triangle has a base of 2 meters and a perimeter of 12 meters. How many meters on length of the other side?

5 meters

Cherish obtained the following result from her Math examinations: 82, 83, 85, 90. The score that must she get in the next examination is ______ so that her average score is 86.

During summer, Iah visits Boracay every six days while Janud visits every four days. If they visited Boracay last April 11, then the earliest date that both will visit Boracay again is

April 23

Given that 25=x (mod 12), what is the value of x

Given that A= {-4, -2, 0, 2, 4} and B = {-4, -2, 0, 4, 3}

A u B = {-4, -2 ,0, 2 ,3, 4}

What is her weight on the fourth week?

58 kg

If a = 9 x 23 and b = 9 x 124, then b - a = ?

909

If a die is rolled, the probability of getting a number divisible by 2 is

1/2

If a pair of angles is complementary and equal in measure, then each angle measures is

45 degrees

If each sack of rice contains 23 1/3 kg, then how many weigh kilograms of 15 sack of rice?

350 kilograms

One side of a cube is 3 cm. What is the ratio of its volume with another cube whose side is 5 cm is

27:125

Only 682 examinees passed in a social work licensure examination out of 2550 examinees, what is percent equivalent is that?

26.7%

If f(x) = 2x - 3 and g(x) = x'2 - 1, then g•fx =

4 x 2 - 12x + 8

The area of a circle inscribed in a square having a side of 6 centimeters is

9π

The area of a rectangle is 64. If its length is 16, then is it's perimeter is

The derivative of f(x) = 3(x+5) is

2(x+1)

The distance between the point (-3,2) and (5,3) is

√65

The factorize form of

(2x-3)(x+5)

The greatest common factor (GCF) of 22,15 and 7 is

What is interest earned on Php 6,000 at % after 3 months?

Php 120

The largest prime that is less than 100 is

The least common multiple (LCM) of 5, 6 and 7 is

210

The least common multiple of 2, 3 and 4 is

The measure of an angle is 25 more than its supplement. The measurement of the larger angle is

102.5 degress

Precious is twice as old as Nika two years age. The difference of their present age is 7. What is Precious present age?

16 years old

The possible value of x in x = 3 (mod 10) is

The prime factorization of 273 is

3 x 7 x 13

The prime factorization of 36

2 x 2 x 3 x 3

The prime factorization of 48 is

2 x 2 x 2 x 2 x 3

The prime factorization of 56 is

2 x 2 x 2 x 7

The product of 18 and an integer is 1836, the integer is

102

The ratio of the sides of a scalene triangle is 1:3:6. It the shortest side is 6 m, then the perimeter of the triangle is

The solution set for the equation

5 and -1

The sum of

17x^2y

The total amount after adding 8% interest for 3 months on 6,000.00 is

Php 6,120

The total amount after adding interest of 8% on 10,000.00 for three years is

Php 12,400

How many ways to arrange 5 girls to be seatef in a row of 5 seats?

120 ways

How many ways in choosing 5 basketball players from a group of 9 players?

126 ways

How many gram and pack of sugar that can be made from a 30 kilogram sack?

400 pack in 75 gram of sugar

What is the percent of 35 of 560?

6.25%

To have a 25% profit, the vendor should sell the item at P80.00. How many profit of vendor?

Php 16

Twenty percent of 60% of 200 is equal to

Vea can finish the job alone in six days while Marisol can finish the job alone in three days. How many days can Vea and Marisol finish the job together?

2 days

What are the next two terms of the sequence 8, 17, 26, 35?

44, 53

If A={1,2,3} and B,={1,2,6,9}, then what id A - B?

(3)

If A = {2,4,5} and B = {x, y}, then what is A x B?

{(2,x), (4,x), (5,x), (2,y), (4,y), (5,y)}

What is the value of x and y if (x-y, x+y) = (6,10)?

x = 8, y = 2

If f(x) = 2x + 1and g(x) = 3x + 2, what is (f+g)(x)?

5x + 3

How many subsets are there in a given set A = {c, a, r, l}?

If the standard deviation in a distribution is 4, what is the variance?

Fade's average score on her 3 tests is 90. If her average on her last 2 tests is 80, what is the average score for all 5 tests?

Andrian wants have an interest income of P3, 000 a year. How much must be invest for one year at 8% rate?

P37, 500

The product of 2 whole is 36 and their ratio is 1:4. What is the value of the largest number?

Compute LCM (GCD (45,18,5)

What is the simplest form of

a² + b²

What is the limit of the function y=x 3+3 as x approaches -1?

Using the integers 1,2,3,4 and 5, how many two digit numbers can be formed if repetition is NOT allowed?

If 500 or 25% of a graduating class are girls, how many are graduating?

2000

The total surface area of a cubic box is 600 cm^2. What is the length of one side of this box?

10 cm

An elevator can carry a maximum load of 605 kg. How many passengers of weight 50.5 kg each can he elevator hold?

What is the radius of a circle whose area is 25π cm^2?

5 cm

How many centimeters are there in 2m and 550 mm?

255

Jericko and his son participated in a marathon. Jericko traveled 3 km and 50 m while his son ran 502 m and 36 cm. What is the total distance (in meters) that the father and son tandem covered?

3552 m

If the sum of the interior angles of a regular polygon is 1980 degrees, how many sides does it have?

The measure of the angles of a triangle are in a ratio of 2:3:4. What is the measurement of the middle angle?

60°

In a Math test, eight students obtained the following scores: 10, 15, 12, 18, 16, 24, 12, 14. What is the median score?

14.5

Factor completely the expression:

(3a - 2b)³

When 2,000 pounds of paper are recycled, 17 trees are saved. How many tress are saved if 5,000 pounds of paper is recycled?

42.5

If a liter of chemistry X is 95% pure, how many liters of water must be added to make a 50% solution?

0.90 L

Clarissa accept a position at P14,250 basic salary with an agreement that she will receive a 2% increase every year for 3 years. What will her salary be at the end of 3 years?

P15, 122.21

Crisalyn is planning to take a leisurely stroll around their rectangular patio, which measures 27.7 m long and 21.5 m wide. How far does Crisalyn have to walk?

98.4 m

What is the volume if a toy ball whose radius is 2 cm?

32/3 π cm³

The island of Luzon is estimated to be 100, 000 square kilometers. In exponential form can be expressed as

10⁵

Multiply (3-2i)(3+2i)

Find the simple interest at 6% for 6 months on P8, 000.

P240

Find m in the proportion m/12 = 30/64

Which is the equivalent common fraction of the repeating decimal 3.242424...?

107/3

The Agapito family purchased a 250 pound side of beef and had it packaged. They paid P365.00 for the side beef. During the packaging, 75 lb of beef were discarded as waste. What was the cost per pound for packahed beef?

P2.08 per lb

A politician to get his message to 2/3 of the population of 48,000 in Pangasinan. However, advertising campaign reaches only 3/4 of the number he intended. How many people does he actually reach?

24,000

What is the ratio in the lowest term two hours to 30 minutes?

4:1

What is the value of a in the statement: 3ab=15, if b=5?

Precious salary is P8, 500 per month. If it is increased by 12% what is his new salary per month?

P9, 250

What value of x will satisfy the equation 5x + 7 = 3x - 9?

-8

Hacienda Isabel was to be decided among 22 tenants. Each tenant will be rewarded 6 hectares each. What was the area of Hacienda Isabela?

132 hectares

Which is the length of the hypotenuse of a right triangle with legs 5 inches and 12 inches?

13 inches

The 10th number in the sequence 15, 23, 31,..... ____

Science

Twice Mikay · 249問 · 2年前

Science