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aleksandr82 [10.1K]
3 years ago
11

What percent of 3.5 is 21?

Mathematics
1 answer:
Masteriza [31]3 years ago
5 0
20% good luck on your test
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If you purchesd a $49.00 gift and you use a 20% off coupon how much do you spend
Nutka1998 [239]

Answer:

$39.20

Step-by-step explanation:

$49 * (1-.2) = $39.20

4 0
3 years ago
6. Find the equation in slope-intercept form for the line that passes through the point (-8, 3) and is parallel
prisoha [69]
<h3><u>The equation in slope-intercept form for the line that passes through the point (-8, 3) and is parallel  to the line -5x + 4y = 8 is:</u></h3>

y = \frac{5}{4}x + 13

<em><u>Solution:</u></em>

Given that,

We have to find the equation in slope-intercept form for the line that passes through the point (-8, 3) and is parallel  to the line -5x + 4y = 8

<em><u>The equation of line in slope intercept form is given as:</u></em>

y = mx + c

Where "m" is the slope of line

From given,

-5x + 4y = 8

Rearrange to slope intercept form

4y = 5x + 8

y = \frac{5x}{4} + \frac{8}{4}\\\\y = \frac{5x}{4} + 2

On comparing the above equation with slope intercept form,

m = \frac{5}{4}

We know that, slopes of parallel lines are equal

Therefore, slope of line parallel  to the line -5x + 4y = 8 is:

m = \frac{5}{4}

\text{Substitute } m = \frac{5}{4}\ and\ (x, y) = (-8, 3) \text{ in eqn 1}

3 = \frac{5}{4} \times -8 + c\\\\3 = -10 + c\\\\c = 13

Substitute c = 13 and m = 5/4 in eqn 1

y = \frac{5}{4}x + 13

Thus the equation of line in slope intercept form is found

6 0
3 years ago
Store reduces an item 20% after 3 weeks if unsold a further 30% if unsold after 6 weeks and after 7 weeks a further 10% estimate
antiseptic1488 [7]

Answer:

after 8 weeks its $146sales tax is $154.66

Step-by-step explanation:

6 0
3 years ago
If Sara picks 4 flowers every minute, how many flowers will she have after half an hour if she had to throw away 3 flowers? What
Marianna [84]
What exactly do you throw away 3 flowers? every 3 from the 4 she picked or 3 in total?

well i would say there is 30 minutes in half an hour and she picks 4 every minute, so that means you well have to multiply 30 x 4 = 120 - 4 = 116.
that would be equation.

6 0
4 years ago
Y - 4 = -2(x + 3)
Paraphin [41]

Answer:

(-3,4)

Step-by-step explanation:

Y - 4 = -2(x + 3)

Let x = -3

Y - 4 = -2(-3 + 3)

Y - 4 = -2(0)

Y -4 =0

Add 4 to each side

Y -4+4 =0+4

Y= 4

6 0
3 years ago
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