All categories

3 years ago

Help will give brainliest

Mathematics

1 answer:

andriy [413]3 years ago

5 0

Answer:

<h2>120 Pennies</h2>

Step-by-step explanation:

First, we need to find 80% of 400

400 x 0.8 = 320

Now 50% of 400 is 200

320 - 200 = 120

Cary donated:

<h2>120 Pennies</h2><h2>I'm always happy to help :)</h2>

You might be interested in

What is the value of s ?

Leto [7]

Answer:

36.7 degrees. A straight line is 180 degrees.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the circumference of a circle with a radius of 54 m

Verizon [17]

Answer:

339.42m

Step-by-step explanation:

Circumference of a circle=2x22/7x54

=339.42m

4 0

3 years ago

Read 2 more answers

Can someone help me?

Norma-Jean [14]

Answer: 26

Step-by-step explanation:

32-6 = 26

8 0

3 years ago

Read 2 more answers

The scale in the drawing is 2 cm : 5 m. Select from the drop down the correct numbers into the boxes to give the length, width,

Gelneren [198K]

The length, width, and area will be 25m, 15m, and 375m².

<h3>How to calculate the area?</h3>

From the information given, the scale in the drawing is 2cm : 5m and the length and width are given as 10cm and 6cm respectively.

Length = 10cm = 10 × 2.5 = 25m

Width = 6cm = 6 × 2.5m = 15m

Area = Length × Width

Area = 25 × 15

Area = 375m²

Therefore, the area is 375m².

Learn more about area on:

brainly.com/question/25292087

#SPJ1

7 0

2 years ago

Jolene is making a line graph showing that the cost of grain is proportional to the number of pounds purchased. Jolene will plot

Gelneren [198K]

Answer:

a. $(1,0.25)$

b. $y = 0.25x$

Step-by-step explanation:

Given

The data in the table

Solving (a): The coordinate that represents the unit rate

The unit rate is when its 1 pound

This is so because the unit rate is dollars per pounds.

<em>Hence, the coordinate is </em> $(1,0.25)$ <em></em>

Solving (b): Equation of the graph

First, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where:

$(x_1,y_1) = (1,0.25)$

$(x_2,y_2) = (4,1.00)$

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{1.00 - 0.25}{4 - 1}$

$m = \frac{0.75}{3}$

$m = 0.25$

The equation is then calculated as thus:

$y - y_1 = m(x - x_1)$

This gives:

$y - 0.25 = 0.25(x - 1)$

$y - 0.25 = 0.25x - 0.25$

Make y the subject

$y = 0.25x$

<em>Hence, the equation of the graph is: </em> $y = 0.25x$ <em></em>

6 0

3 years ago