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Colt1911 [192]
3 years ago
6

A brick layer is hired to build three walls

Mathematics
1 answer:
hjlf3 years ago
8 0
Answer is B because brick starts with a B
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What's the area of the rectangle measuring 13 in × 12 in
Airida [17]
13 x 12 = 156 square inches

3 0
3 years ago
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Jayden has some dimes and some quarters. He has at most 25 coins worth at least $4.60 combined. If Jayden has 7 dimes, determine
Y_Kistochka [10]

Answer:

Step-by-step explanation:

A dime is worth 10 cents. Converting to dollars, it becomes 10/100 = $0.1

A quarter is worth 25 cents. Converting to dollars, it becomes 25/100 = $0.25

Let x represent the number of dimes that Jayden has.

Let y represent the number of quarters that Jayden has.

Jayden has some dimes and some quarters. He has at most 25 coins. It means that

x + y ≤ 25

The coins worth at least $4.60 combined. It means that

0.1x + 0.25y ≥ 4.6 - - - - - - - - - - 1

If Jayden has 7 dimes, then

7 + y ≤ 25

y ≤ 25 - 7

y ≤ 18

Substituting x = 7 into equation 1, it becomes

0.1 × 7 + 0.25y ≥ 4.6

0.7 + 0.25y ≥ 4.6

0.25y ≥ 4.6 - 0.7

0.25y ≥ 3.9

y ≥ 3.9/0.25

y ≥ 15.6

All possible values for the number of quarters that he could have would be

15.6 ≤ y ≤ 18

6 0
3 years ago
What is the vertex form of the equation?
GuDViN [60]
We need to write the equation in its vertex form so we have to know the general equation for the vertex form. It is written as:

y = (x - h)^2 + k

where h and k represents the point of the vertex.

We go as follows:

y = (x^2 + 4x) – 3 
y +4= (x^2 + 4x+4) – 3 
y = (x + 2)^2 - 7

Therefore, the correct answer from the choices is option B.
7 0
3 years ago
Read 2 more answers
Find the surface area of the cylinder. Round your answer to the nearest tenth.
kirill [66]

Given:

Height of cylinder = 12 cm

Diameter of cylinder = 6 cm

To find:

Surface area of the cylinder

Solution:

Radius = 6 ÷ 2 = 3 cm

Surface area formula:

SA=2\pi r^2+2 \pi rh

Substitute the given values.

SA=2\times3.14 \times3^2+2\times3.14 \times3  \times12

     =56.52+226.08

     = 286.2 cm²

The surface area of the cylinder is 286.2 cm².

8 0
3 years ago
calcular lo que costará sembrar césped en un jardín de forma triangular de base 25 m y de altura 15m si cada metro cuadrado de c
olasank [31]

Answer:

$3,750

Step-by-step explanation:

In english:

First we need to calculate the area of the garden. As it is a triangle we calculate the area as:

area = (base*height)/2

The base is 25m and the height 15m, so the area is:

area = 25*15/2 = 187.5 m2

As each m2 costs $20, for the whole cost we need to calculate the product between 187.5 m2 and $20:

cost = 187.5 * $20 = $3,750

Total cost: $3,750

In spanish (en espanol):

Primero necesitamos calcular el área del jardín. Como es un triángulo calculamos el área como:

área = (base * altura) / 2

La base mide 25 my la altura 15 m, por lo que el área es:

área = 25 * 15/2 = 187.5 m2

Como cada m2 cuesta $ 20, para el costo total necesitamos calcular el producto entre 187.5 m2 y $ 20:

costo = 187.5 * $ 20 = $ 3,750

Costo total: $3,750

3 0
3 years ago
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