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Savatey [412]
3 years ago
15

A number is decreased by seven. Then, the new number is multiplied by 3 to get an answer of -9.

Mathematics
2 answers:
Alexus [3.1K]3 years ago
6 0
The answer is 4 because of the symbol
enyata [817]3 years ago
5 0

Answer:

The answer is C.4.

Explanation:

What I did was to divide -9 by 3 to get -3. Then I added 7 to -3, which got me to the answer of 4.

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In triangle ABC above, AD is perpendicular to CB. If the lengths of AD and CB were both increased by 50%, how would the area of
astra-53 [7]

Answer:

The answer is below

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. There are different types of triangles such as scalene triangle, equilateral triangle, isosceles triangle.

The area of a triangle is given as:

A = (1/2) * b * h

where b = base of triangle, h = height of triangle , A = area

Let BC = base = x, and AD = height = y, hence:

A = (1/2) * x * y = 0.5xy

If the lengths of AD and CB were both increased by 50%, hence:

new AD = y + 0.5y = 1.5y, new CB = x + 0.5x = 1.5x

The new area= (1/2) * 1.5y * 1.5x = 1.125xy

Increased area / area = 1.125xy / 0.5xy = 2.25

If the lengths are increased by 50%, the area would also increase and the new area would be 2.25 times

3 0
3 years ago
Amanda earns £285 a week.This is due to increase by 10%.How much is the increase
Natali [406]

Answer:

28.5

Step-by-step explanation:

i think itś 28.5 because 285 is after an increase of 10% which would mean 28.5 was the increase

3 0
3 years ago
Sales rise from £400 a week to £504 a week. Calculate a percentage increase
soldier1979 [14.2K]

Step-by-step explanation:

previous =£400

present=£504

percentage=(£504-£400)/£504*100

=104/£504*100

=20.63%

3 0
3 years ago
A carton contains 1.92 liters of milk. There are 8 servings in the carton. How many liters of milk are in each serving? A. 0.14
BaLLatris [955]

Answer:

C. 0.24

Step-by-step explanation:

A carton contains 1.92 liters of milk. There are 8 servings in the carton. How many liters of milk are in each serving? A. 0.14 B. 0.19 C. 0.24 D. 0.29

From the above question:

8 servings = 1.92 liters of milk

1 serving = x liters

Cross Multiply

8 × x liters = 1 × 1.92 liters

x liters = 1.92 liters/8

x liters = 0.24 liters

There are 0.24 liters of milk, in 1 serving

3 0
3 years ago
If the artist wanted to add a smaller cube with an edge length of 2/3to the sculpture, what size would the cube be?
Westkost [7]

Answer:


Step-by-step explanation:


6 0
4 years ago
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