I need to know if this can make a triangle

Answers

Answer 1

Answer: That can't make a triangle. First of all, to make a triangle the length of 2 side add together should be greater than the bigger number of the triangle. So, 45+8=53. The bigger triangle is 90.

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Suppose you plan to purchase 10 items that each cost 4.45. Explain how you use mental math to to find the cost of 10 items

Mary Catherine makes 2 gallons of punch how many cups of punch did she make

Answers

there are 16 cups in the gallon

Each day, Martin lifts weights for 10 minutes and runs on the treadmill for 25 minutes. Wrire two equivalent expressions and then find the total minutes that Martin exercises in 7 days.

Answers

10 x 7 = ?(70) 25 x 7 = ?(175) 175 + 70 = 245

Final answer:

Martin spends 35 minutes exercising daily. Two equivalent expressions to find his exercise time in 7 days are '7 * 35' and '(7 * 10) + (7 * 25)'. Thus, Martin exercises for a total of 245 minutes in 7 days.

Explanation:

First, let's determine the total amount of time Martin exercises daily. He lifts weights for 10 minutes and runs on the treadmill for 25 minutes. Thus, the total time he spends exercising each day is 10 minutes (weightlifting) + 25 minutes (treadmill) = 35 minutes.

Two equivalent expressions for Martin's total exercise time in 7 days can be represented as:

7 (days) * 35 (minutes/day)
(7 days * 10 minutes/day) + (7 days * 25 minutes/day)

In both cases, they lead to the same conclusion. Hence, the total time Martin spends exercising in 7 days is 7*35 =245 minutes.

Learn more about Mathematics (Time calculation) here:

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Which pair of ratios is proportional and why/how?a. 5ft:7 sec and 20ft:28 sec
b. 3 yd:15 mi and 15 yd: 75 mi

Answers

B WOULD BE THE BEST CHOICE BOTH RATES ARE EQUAL

Three vertices of a rectangle are (–3, 4), (5, 4), and (5, –2).

What are the coordinates of the fourth vertex of the rectangle?

A. (–3, –4)

B. (–3, –2)

C. (5, –3)

D. (5, 2)

Answers

$A =(-3, 4), \ \ B= (5, 4),\ \ C= (5, -2)\n \n The \ slope \ of \ AB : \n \n \n m= (y_(2)-y_(1))/(x_(2)-x_(1) ) = (4-4)/(5+3)=(0)/(8)=0\n \n The \ slope \ of \ CB :\n \n m= (y_(2)-y_(1))/(x_(2)-x_(1) ) = (5-5)/(-2-4)=0$

$The \ slope \ of \ lines \ parallel \ is \ the \ same \n \nTo \ find \ the \ coordinates \ of \ the \ fourth \ vertex, \ add \ the \ coordinates \n of \ A \ and \ C \ together, \ and \ subtract \ the \ coordinates \ of \ B. \n \n The \ fourth \ vertex \ is: (-3+5-5; 4-2-4) = (-3, -2) \n \n Answer: \ B. \ \ (-3, -2)$

The rectangle doesn't necessarily have to be standing up straight or laying down flat
on the graph. It could be tilted ... leaning. Dealing with those coordinates would be
a nightmare, and since you're in Middle School and just learning this stuff, we can be
pretty sure that the rectangle in this problem is straight on the graph.

If we think about it for a second, and visualize a rectangle in our mind, we realize that:

-- Both top corners have the same y-coordinate.
-- Both bottom corners have the same y-coordinate.
-- Both corners on the left side have the same x-coordinate.
-- Both corners on the right side have the same x-coordinate.

The first two points given in the question are ( -3, 4) and (5, 4).

-- They have the same y-coordinate, so they must be either the top
or the bottom two corners.

-- We also know right away that the left side of the rectangle is at x = -3
and the right side of the rectangle is at x = 5 .

Now look at the third given point ... (5, -2) .

-- Its x-coordinate is 5 so we know it's a corner on the right side.

-- But we already had one corner on the right side ... the point at (5, 4).
This new one is lower.

-- So now we know that (5, 4) was the upper right corner, (-3, 4) was the
upper left corner, and this new point is the lower right corner.

All we're missing is the lower left corner.

We know now that the left side is at x = -3 and the right side is at 5 .
We also know now that the top is at y = 4 and the bottom is at y = -2 .

So the bottom left corner is (-3, -2). That's choice - 'B' .

What's 4/9 divide 1 7/15 plz

Answers

I hope this helps you

0.444444444444 (4/9)
0.466666666666 (7/15)

Describe a situation where it is easier to use decimals than fractions , explain why .

Answers

Answer:

Handling Money

Step-by-step explanation:

Fractions are of the form $(a)/(b)$ , where a and b are integers with b≠0. They, represents some part of the whole number.

Decimals are those fractions in which the denominators are powers of ten and numerators are the figures placed to the around the decimal point.

For e.g. 7.8 = $(78)/(10)$

Now, there are many situations where using decimals are effective than using fractions.

For e.g. While handling money, decimals prove fruitful than fractions.

That is $2.45 is much easier to work with than $ $(245)/(100)$ i.e. $ $(49)/(20)$ .

When you must multiply non whole numbers, decimals are easier to manipulate in the sense that setting up a multiplication problem with decimals rather than fractions is much simpler and easier to calculate.

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