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lapo4ka [179]
3 years ago
6

Here are five number cards. 2 5 7 8 9 One of the cards is removed and the mean average of the remaining four number cards is 6.

Which card is removed? You must show your working. Note:Please make sure your final answer says card...
Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

Card 7

Step-by-step explanation:

2+5+7+8+9 =31

Multiples of 6: 6, 12, 18, 24, 30

31-9=22, No

31-8=23, No

31-5=26, No

31-2=29, No

31-7=24, Yes

The only way to get a multiple of 6 is to subtract card 7, so card 7 is the answer.

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In the year 1987, an investment was worth $29,800. In the year 1997, this
Veseljchak [2.6K]

Answer:

a) 46.98%

b) increasing rate of change

Step-by-step explanation:

In year 1987, investment worth $29800

In year 1997, investment worth $43800

Rate of change = 1997investment - 1987investment / 1987investment × 100

Rate of change = 43800 - 29800/29800 × 100

= 14000/29800 × 100

= 0.46979 × 100

= 46.98%

Therefore, the rate of change of the investment during the time period is 46.98%.

b) The rate of change of the investment is increasing. This is as a result of the following reasons. First, the value of rate of change is positive. Second, there is no value for rate of change for period before the time period so we cannot compare rate of change.

8 0
3 years ago
what is the volume of a triangular prism that is 75 centimeters long and that has a base with an area of 30 square centimeters
pychu [463]
75 * 30= 2250 that's how u get the answer
3 0
3 years ago
Order from least to greatest -3, 1/6, -1/6, 0.5
Rzqust [24]
This is the answer -1/6, -3, 1/6, .5,
6 0
3 years ago
Read 2 more answers
Type your answers into the boxes.
egoroff_w [7]

Answer:

Step-by-step explanation:

√121 = 11

√900 = √30^2 = 30

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6 0
3 years ago
Plz help asap will markbrainliest
kicyunya [14]

This is called a Supplementary Angle, meaning the angles <em><u>MUST</u></em> add up to 180 Degree.

Angle 1 will be 94 (94-18 = 76).

Angle 2 will be 13 (8x13 = 104).

(Please mark this as the brainliest if this helps!)

7 0
3 years ago
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