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3 years ago

I REALLY NEED TO PASS THIS LESSON PLZZZZ HELPPPP!!!!!

Mathematics

1 answer:

galben [10]3 years ago

6 0

Since she has "no more than $40 to spend" we know that the the symbol must be "less than or equal to" $\leq$ . Now we can eliminate the first and second choices because they are "greater than or equal to".

Next, we can figure out how to model this situation. There is a flat $5 fee and each song is $2. We can model this with 2s+5 ($2 per son plus $5).

The answer is $2s+5\leq 40$

Hope this helps!

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Write the equation of a line that is parallel to 4x-2y=3 and is passing through the point (2,1)

Temka [501]

Answer:

y= 2x -3

Step-by-step explanation:

Let's rewrite the given equation into the form of y=mx+c, so that we can find the gradient of the line. In this form, m (coefficient of x) is the gradient.

4x -2y= 3

2y= 4x -3

Divide by 2 throughout:

$y = 2x - 1 \frac{1}{2}$

Thus the gradient is 2.

Parallel lines have the same gradient thus the line would also have a gradient of 2.

Substitute m=2 into the equation:

y= 2x +c

To find the value of c, substitute a pair of coordinates.

When x=2, y=1,

1= 2(2) +c

1= 4 +c

c= 1 -4

c= -3

Thus, the equation of the line is y= 2x -3.

5 0

2 years ago

A department store buys 300 shirts at a cost of $2,100 and sells them at a selling price of $10 each. Find the percent markup

denis23 [38]

Answer:

markup 3 dollars a shirt. Total markup 900$

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

3/8+5/16 in lowest terms

Salsk061 [2.6K]

3/8+5/16

=3/8+5/16

=6/16+5/16

=6+5/16

=11/16

(Decimal: 0.6875)

6 0

2 years ago

The oven tray is 600mm by 500mm. A cake tin is 25cm in diameter. How many cake tins can jenny fit on the oven tray at one time?

vlada-n [284]

Area of Circle= $\pi 
$ $r^{2}$
= $\frac{22}{7}$ x $( \frac{25cm}{2}) ^{2}$
= 490.87 $cm^{2}$

Area of Oven tray= 60cm x 50cm
= 3000 $cm^{2}$

: . # tin that can hold on bake tray= 3000 $cm^{2}$ / 490.87 $cm^{2}$ = 6.11
Thus making it logically 6.....

8 0

3 years ago

Tonya has 39 packages. Each package weighs 6 pounds. Choose the best estimate of the total weight of the packages.

Sidana [21]

Step-by-step explanation:

If were estimating, 39 is pretty close to 40 and 40x6 is 240 pounds. if we are getting exact about it, then 234 pounds

5 0

2 years ago