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Jlenok [28]
3 years ago
11

Two friends, Selma and Khalid are revising algebra. Khalid says: 'I am thinking of a number. If you multiply it by 3 and subtrac

t 6, you get the same answer as adding the number to 7'. Call Khalid's number y and form an equation
Mathematics
1 answer:
kogti [31]3 years ago
5 0

Answer:

Equation: 3y - 6 = y + 7

y = 6.5

Step-by-step explanation:

Step 1: Write out equation

3y - 6 = y + 7

Step 2: Solve for <em>y</em>

2y - 6 = 7

2y = 13

y = 13/2 or 6.5

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Can some help me with this
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Answer:

Naw I can't help ya I gotta find my notes

4 0
3 years ago
Most people can walk about 3750 feet in 15 minutes what is the unit rate in feet per minute for this walking pace
Debora [2.8K]

Based on the calculations, the unit rate in feet per minute for this walking pace is equal to 250 feet per minute.

<h3>How to calculate the unit rate?</h3>

A unit rate refers to a measurement of a quantity which is calculated as a ratio of one parameter to another.

This ultimately implies that, we would divide the distance covered in feet by the time taken to cover this distance as follows:

Unit rate = distance/time

Unit rate = 3750/15

Unit rate = 250 feet per minute.

Read more on time here: brainly.com/question/12199398

#SPJ1

5 0
2 years ago
Only thing I need to know is what to do for the x on y = x + 3 and y = x
Ronch [10]

Answer:

Think of y = mx + b,

With y = x + 3, m = 1 so the slope is one, and b = 3 which is the y-intercept, so plot the point (0,3) on the y-axis.

To find the next point to plot go up 1 and over to the right 1 because slope is rise over run.

With y = x, the slope is still 1, but there is no y-intercept, so you plot the point (0,0), and to find the next point on that line, go up 1 and over the right 1 because m=1

8 0
2 years ago
A circle with radius 4 inches is inscribed in an equilateral triangle. Find the area of the triangle.
LUCKY_DIMON [66]

The inscribed circle has its center at the point of intersection of the angle bisectors, which also happen to be the medians. Hence the altitude of the triangle is 3 times the radius, or 12 inches.

The side length of this triangle is 2/√3 times the altitude, so the area is

... Area = (1/2)·b·h = (1/2)·(24/√3 in)·(12 in)

... Area = 48√3 in² ≈ 83.1384 in²

7 0
3 years ago
Solve for x. x/7 - y = a<br><br> Please help as soon as possible. Thanks! =D
ololo11 [35]

Hello!

Answer:

x=7(a+y)

Step-by-step explanation:

Hope this helps!

5 0
3 years ago
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