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3 years ago

Hi can anyone help me with all three questions I have not been taught this topic

Mathematics

1 answer:

scoundrel [369]3 years ago

4 0

Answer:

240, 1800, 2040

Step-by-step explanation:

First find the surface area of the shape - base = 3 x 15 x 2 + 40 x 15 + 40 x 3 x 2 = 930 m ^2

Now find the area of base = 40 x 15 = 600

Now, the cost of painting = 10 pounds for 25 m^2. SO here cost = 600 / 25 x 10 = 24 x 10 = 240 pounds.

Now cost of tiles = 600 x 3 = 1800

Total cost = 1800 +240 = 2040

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Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2, and the profit

Mademuasel [1]

Answer:

$y = -\frac{2}{3}x + 490$

gradient = = $-\frac{2}{3}$

y-intercept = $490$

Step-by-step explanation:

• The slope-intercept form of an equation takes the general form:

$\boxed{y = mx + c}$ ,

where:

m = slope,

c = y-intercept.

• We are given the equation:

$2x + 3y = 1470$

To change this into the slope-intercept form, we must make y the subject:

$3y = -2x + 1470$ [subtract $2x$ from both sides]

⇒ $y = -\frac{2}{3}x + \frac{1479}{3}$ [divide both sides by 3]

⇒ $y = -\frac{2}{3}x + 490$

• Comparing this equation with the general form equation, we see that:

m = $-\frac{2}{3}$

c = $490$ .

This means that the gradient is $\bf -\frac{2}{3}$ , and the y-intercept is $\bf 490$ .

6 0

1 year ago

Trent made 11 free throws out of 15 attempts during the basketball game.What was his free-throw average expressed as a decimal?

nlexa [21]

$\frac{11}{15} =\boxed{\bf{0.733333333...}}$

5 0

2 years ago

Help please .. don’t understand

Grace [21]

Answer:

sinx = p/h , cosx = b/h , tanx = p/b

you can use these relations

Step-by-step explanation:

p = perpendicular = side opposite to the angle

h = hypotenuse = side opposite to the right angle

b= base

if no angles are given, p and b can be interchanged

3 0

3 years ago

Read 2 more answers

The sum of two consecutive integers is 471. what is the equation

Naddik [55]

Answer:

x+(x+1)=471

Step-by-step explanation:

6 0

2 years ago

A road repair crew spread 7/8 of a ton of gravel evenly over 7 feet of road. How many tons of gravel did they spread on each foo

Alex

7/8 duh it there u just have to read it nicely

5 0

2 years ago