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3 years ago

Need math help pls!!

Mathematics

1 answer:

SVEN [57.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

The facts we have are the height of the small lighthouse is 8, and the base is 2.5. The base of the big lighthouse is 10.

The factor between the base of the big lighthouse and small lighthouse is 4 (10/2.5).

If we apply this to the height, 8x4 = 32

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After the new admission to the school, there is an increase of 30 percent of students. If the total number of students is now 12

Salsk061 [2.6K]

Step-by-step explanation:

1200 students=130%(100% +30%)

100%=?

100% ×1200/130%

800students

7 0

2 years ago

What the answer??? I such at fraction like this

kiruha [24]

Answer:

1) 6/21 because change the mixed fraction 3 3/6 into improper fraction 21/6 then the reciprocal of 21/6 is 6/21 we reciprocal it because it is in the rule of dividing fraction

2) If we multiply 3/3 to the 6/21

Multiply both the numerator

3 x 6 = 18

Multiply both the denominator

3 x 21 = 63

So its 18/63

3 0

2 years ago

Read 2 more answers

Heron wants to buy a video game. The price is regularly priced at 55 dollars. The store has a discount of 20% off and a sales ta

nadezda [96]

The amount paid by Heron for the video game is $46.64.

Step-by-step explanation:

Here, the marked price of the video game = $55

The discount percentage on the video game = 20%

Calculating 20% of the $55, we get:

$\frac{20}{100} \times 55 = 11$

So, the discount offered on the video game = $11

Selling Price = Marked Price - Discount

=$55 - $11 = $44

Now, the tax percentage on the video game = 6%

Calculating 6% of the $44, we get:

$\frac{6}{100} \times 44 =2.64$

So, the tax on the video game = $2.64

New Selling Price = Selling Price + Tax

=$44 + $2.64 = $46.64

So, the amount paid by Heron for the video game is $46.64.

4 0

2 years ago

This is for 75 points and brainlyest if you can help

hoa [83]

Answer:

(3x - 5°) = 52°

Step-by-step explanation:

Formula we use,

→ A + B + C + D + E = 540°

Then the value of x will be,

→ A + B + C + D + E = 540°

→ (6x + 25°) + (5x + 10°) + (3x - 5°) + (5x + 10°) + (6x + 25°) = 540°

→ (6x + 5x + 3x + 5x + 6x) + (25° + 10° - 5° + 10° + 25°) = 540°

→ 25x + 65° = 540°

→ 25x = 540° - 65°

→ 25x = 475°

→ x = 475/25

→ [ x = 19° ]

The value of angle (3x - 5°) will be,

→ (3x - 5°)

→ (3 × 19) - 5°

→ 57° - 5°

→ [ 52° ]

Hence, value of angle (3x - 5°) is 52°.

6 0

1 year ago

There are two conditions under which we can assume that the sample means follow a normal distribution. What are they

Naddik [55]

Two conditions under which we can assume that the sample means follow a normal distribution are as follows:

1). If the sample size is large enough, n greater than or equals 30, the sampling distribution is approximately normal regardless of the shape of the population.

2). In order to be considered a normal distribution, a data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean.

To learn more about Normal Distributions visit:

brainly.com/question/4079902

#SPJ4

5 0

1 year ago