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3 years ago

Change this in 12 hour clock. 19 15

Mathematics

1 answer:

andrew-mc [135]3 years ago

4 0

Answer:

th answer is 7:15 pm

Step-by-step explanation:

basically just count with your hands if you want, start with one finger and say 13 and go up from there, 7th finger is the 19th. Thats my easiest way of doing it. Or you can subtract 24-19 and subtract 12 from the remaining sum

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Two bowls and one cup weigh 800 grams. One bowl and two cups weigh 700 grams. Find the weight of the bowl and the cup

antoniya [11.8K]

Answer:

\large \boxed{\textbf{Bowl = 300 g; cup = 200 g}}

Step-by-step explanation:

Let b = the mass of a bowl

and c = the mass of a cup

We have two conditions:

$\begin{array}{lrcl}(1) &2b + c & = & 800\\(2) & b + 2c & = & 700\\\end{array}$

Calculations:

$\begin{array}{lrcll}(3) & 4b + 2c &= & 1600&\text{ Multiplied (1) by 2}\\& 3b & = & 900&\text{Subtracted (2) from (3)}\\(4) & b & = & \mathbf{300}&\text{Divided each side by 3}\\ & 600 + c & = & 800&\text{Substituted (4) into (2}\\ & c & = & \mathbf{200}\\\end{array}\\\text{The mass of a bowl is $\large \boxed{\textbf{300 g}}$ and that of a cup is $\large \boxed{\textbf{200 g}}$}$

Check:

$\begin{array}{rlcrl}2(300) + 200& =800 & & 300 + 2(200) & = 700\\600 + 200 & = 800& & 300 + 400 & = 700\\800 & = 800& & 700 & = 700\\\end{array}$

OK.

6 0

3 years ago

the graph shows the total number of inches of snow that fell in a town in february over ten year period. what is the approximate

VladimirAG [237]

Answer:

0.6 because its 58% chance which is 0.58 which rounds to 0.6

Step-by-step explanation:

6 0

4 years ago

H14

lys-0071 [83]

uh I don't unerstand that :(

4 0

2 years ago

What is a counterexample to the conditional statement?

posledela

Answer:

The number 9 is greater than 1 and less than 10, while its factors are 1, 3 and 9, therefore it is a counter example to the statement.

Step-by-step explanation:

There are four odd numbers between 1 and 10, they are: 3, 5, 7 and 9. Let's check the factors for each of them.

For 3:

$\frac{3}{1} = 3\\\frac{3}{3} = 1$

Therefore 3 is not a counter example to the statement, because it behaves as stated.

For 5:

$\frac{5}{1} = 5\\\frac{5}{5} = 1$

Therefore 5 is not a counter example to the statement, because it behaves as stated.

For 7:

$\frac{7}{1} = 7\\\frac{7}{7} = 1$

Therefore 7 is not a counter example to the statement, because it behaves as stated.

For 9:

$\frac{9}{1} = 9\\\frac{9}{3} = 3\\\frac{9}{9} = 1\\$

Therefore 9 is a counter example to the statement, since it can be divided by 1, 3 and 9.

6 0

3 years ago

Will appreciate it :)

Sonbull [250]

Answer:

Step-by-step explanation:

In order for lines to be parallel they have to have the same slope. The first 2 equations there are solved for 5y, so let's do that to the last one--solve it for 5y--and put them all in the same order (the order that the first one is in; they will all look identical then). Equation #2 in the same order as in #1: 5y = 3x - 4. Equation #3 then becomes 5y = 3x - 1. Equations #2 and 3 have the same slope.

5 0

4 years ago