All categories

3 years ago

Leanne multiplied 8 x 4.3 and got 32.24. Is Leanne correct?Use an area model to explain your answer

Mathematics

1 answer:

dlinn [17]3 years ago

3 0

Answer:

No, not correct.

Step-by-step explanation:

Note that 8 * 4.3 can be broken up as follows:

8 * (4 + 0.3)

and that 4*8 =32, and that 0.3(8) = 2.4 (not 0.24).

Then 8 * (4 + 0.3) becomes 32 + 2.4 = 34.4

You might be interested in

A quadrilateral has its four points at the coordinates (1,1) , (-3,1) , (1,4) , & (-3,4). What type of quadrilateral is it?

Lady bird [3.3K]

It's is a square and you know just by graphing it

3 0

3 years ago

10 POINST!!!<br> What is the area of quadrilateral QRST if QS=18 and RT=24? Show your work.

Allisa [31]

Answer:

area= 1/2 × d1 ×d2

d = diagonal

area= 1/2 ×24×18 =216 unit^2

6 0

3 years ago

A comic-strip writer churns out a different number of comic strips each day. For 16 days, the writer logged the number of comic

Arte-miy333 [17]

The distribution will be skewed to the positive side because the mean is greater than the median.
Mean: 3.7
Median: 3

Answer: B

6 0

3 years ago

Larry has a gift card worth 400 for a local entertainment store Movies cost $20 each and newly released video games cost $50 eac

Vikki [24]

Answer:

All are correct.

Step-by-step explanation:

Let x be the number of movies and y be the number of newly released video games.

Larry has a gift card worth 400 for a local entertainment store Movies cost $20 each and newly released video games cost $50 each.

$20x+50y\leq 400$

Larry must purchase at least nine items.

$x+y\geq 9$

Check both inequalities of all given ordered pairs.

For (5,6),

$20(5)+50(6)\leq 400\Rightarrow 400\leq 400$

$5+6\geq 9\Rightarrow 16\geq 9$

Point (5,6) satisfy both inequalities.

For (10,4),

$20(10)+50(4)\leq 400\Rightarrow 400\leq 400$

$10+4\geq 9\Rightarrow 14\geq 9$

Point (10,4) satisfy both inequalities.

For (20,0),

$20(20)+50(0)\leq 400\Rightarrow 400\leq 400$

$20+0\geq 9\Rightarrow 20\geq 9$

Point (20,0) satisfy both inequalities.

For (15,2),

$20(15)+50(2)\leq 400\Rightarrow 400\leq 400$

$15+2\geq 9\Rightarrow 17\geq 9$

Point (15,2) satisfy both inequalities.

Therefore, all combination of movies and newly released video games Larry could purchase using his gift card.

4 0

3 years ago

Equation Y equals 7X can be used to find the price of different amounts of honey

Fantom [35]

Answer:

x=y/7

Step-by-step explanation:

So, the variable x is the number of jars of honey.

y is the total price of the honey.

So, x=y/7

or,

y=7x

5 0

3 years ago