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3 years ago

A baker bought 7,500 grams of flour for $19.20. How much does each kilogram cost

Mathematics

1 answer:

saveliy_v [14]3 years ago

3 0

1000 grams = 1 kg;
7,500 grams = 7,5 kg;
We solve: $19.20 ÷ 7,5 kh = 2.56 $ per kg.

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Graph the linear equation x-3y=-6

TEA [102]

Answer:

Step-by-step explanation:

One of the easier approaches to graphing a linear equation such as this one is to solve it for y, which gives us both the slope of the line and the y-intercept.

x-3y=-6 → -3y = -x - 6, or 3y = x + 6.

Dividing both sides by 3, we get y = (1/3)x + 2.

So the slope of this line is 1/3 and the y-intercept is 2.

Plot a dot at (0, 2). This is the y-intercept. Now move your pencil point from that dot 3 spaces to the right and then 1 space up. Draw a line thru these two dots. End.

Alternatively, you could use the intercept method. We have already found that the y-intercept is (0, 2). To find the x-intercept, let y = 0. Then x = -6, and the x-intercept is (-6, 0).

Plot both (0, 2) and (-6, 0) and draw a line thru these points. Same graph.

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3 years ago

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Can anybody help me? No links please lol

sleet_krkn [62]

Answer:

60% OF 6 = 3.6

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OF means multiplicatin

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0.6 x 6 = 3.6 :)

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Step-by-step explanation:

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2 years ago

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Question set 2: Many species of terrestrial tree frogs that hibernate at or near the ground surface can survive prolonged exposu

joja [24]

Answer:

0.86

Step-by-step explanation:

The z-score we need to make the comparison is given by

$\bf z=\frac{-2.05-(-2)}{\sigma/\sqrt{n}}$

where

$\bf \sigma$ = the standard deviation established in the study

n = the sample size

$\bf z=\frac{-2.05-(-2)}{0.3/\sqrt{42}}=-1.0801$

and for the Normal distribution N(0,1) we want to find

By using a spreadsheet or the table attached, we find that

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3 years ago

A bag contains 5 red marbles, 7 blue marbles and 4 green marbles if two marbles are drawn out of the bag what is the probability

Ann [662]

Answer:

0.083 probability that both are red

Step-by-step explanation:

total marbles = 5 + 7 + 4 = 16

Two marbles drawn out.

Find P(red, and red) = (5/16) * (4/15) = 1/(3*4) = 1/12 = 0.08333

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3 years ago

Find the sum of the odd numbers between 11 and 199 inclusive

Varvara68 [4.7K]

Answer:

The sum of the odd numbers between 11 and 199 inclusive

= 9,975

Step-by-step explanation:

Old numbers between 11 and 199 are:

11 13 15 17 19 21 23 25 27 29 = 200

31 33 35 37 39 41 43 45 47 49 = 400

51 53 55 57 59 61 63 65 67 69 = 600

71 73 75 77 79 81 83 85 87 89 = 800

91 93 95 97 99 101 103 105 107 109 = 1,000

111 113 115 117 119 121 123 125 127 129 = 1,200

131 133 135 137 139 141 143 145 147 149 = 1,400

151 153 155 157 159 161 163 165 167 169 = 1,600

171 173 175 177 179 181 183 185 187 189 = 1,800

191 193 195 197 199 = 975

Total sum = 9,975

Classify the odd numbers into 10 columns, then add each row. Start by adding the first row, which equals 200. Each successive row of the old numbers will equal 200 more than the previous row sum. At the end, add all the row sums to get the sum of the old numbers from 11 to 199.

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2 years ago