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Finger [1]
3 years ago
13

Jill is making lemonade. The original concentration was 25 mL of concentrate to 2 L of water. People found that too strong so sh

e decreased the concentration to 20 mL of concentrate to 2 L of water. By what percentage did she decrease the concentrate?
A) 2%
B) 3%
C) 5%
D) 20%
Mathematics
2 answers:
Goshia [24]3 years ago
6 0

Answer:

Step-by-step explanation:

The answer is D)20%

Harlamova29_29 [7]3 years ago
4 0
100%= 25mls

20/25 x 100 = 80%

100%-80%= 20%
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a car rental company charges an initial fee plus a constant fee per kilometer driven this table compares a total distance driven
ollegr [7]

Answer:

$120

Step-by-step explanation:

The initial fee that was charged is the y-intercept of the equation that represents the situation given.

Using the slope-intercept equation, y = mx + b, find m and then find b, which is the initial fee.

Where, x = distance, y = price, m = slope, and b = y-intercept, which is the initial fee that was charged that we are looking for.

First, using two pairs, (105, 183) and (140, 204), find the slope (m):

m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{204 - 183}{140 - 105} = \frac{21}{35} = \frac{3}{5}

m = ⅗

To find the y-intercept, b, substitute x = 105, y = 183, and m = ⅗ into y = mx + b.

183 = \frac{3}{5}(105) + b

183 = 63 + b

Subtract 63 from each side

183 - 63 = b

120 = b

The initial fee of the company is $120.

7 0
3 years ago
Help!!! MATHS QUESTION I WILL GIVE YOU A HEART!!!
Novay_Z [31]

Answer:

bottom diagram

15 green

Step-by-step explanation:

5 green for every 2 blue

The bottom diagram matches that situation

5 green  10 green  15 green

2 blue      4 blue      6 blue

-----          ---------       ----------

3 diff         6 diff        9 diff

When she paints 15 green and 6 blue she has painted 9 more green than blue

5 0
3 years ago
What is m∠PQR? please help
leva [86]

Answer:

127

Step-by-step explanation:

The angles add up to 180° since they are on a straight line. Find 3x - 5.

3x - 5 + x + 1 = 180

4x - 4 = 180

4x = 180 - 4

    = 176

x = 176 ÷ 4

x = 44

3x - 5 = 3(44) - 5

          = 132 - 5

          = 127

6 0
3 years ago
Read 2 more answers
Given that Y= 3x – 8, what is the sum of the gradient and intercept of the linear equation? *
chubhunter [2.5K]

Answer:

- 5

Step-by-step explanation:

The equation of a line in slope - intercept form is

y = mx + c ( m is the slope (gradient) and c the t- intercept )

y = 3x - 8 ← is in slope- intercept form

with gradient m = 3 and y- intercept c = - 8 , thus

m + c = 3 + (- 8) = 3 - 8 = - 5

5 0
3 years ago
What is the measurement of an angle if it measures 37 degrees
gavmur [86]

Answer:

37

Step-by-step explanation:

Well you said the answer in your question

5 0
2 years ago
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