Answer:
Area: 42 cm²
Perimeter: 28.4 cm
Step-by-step explanation:
Simply plug in 4.2 cm for x into x + 5.8 to find the width. You width should be 10.
Area: Multiply 10 by 4.2 and you should get 42
Perimeter: Add up all the sides together (4.2 x 2 + 10 x 2) and you should get 28.4
Answer:
420
Step-by-step explanation:
Answer:
15 - n/3 = 20
n = -15
Step-by-step explanation:
Decreased means subtract
15 -
quotient means divide
15 - n/3
Is means equals
15 - n/3 = 20
To solve subtract 15 from both sides
15-15 - n/3 = 20-15
-n/3 = 5
Multiply each side by -3
-3 * (-n/3) = 5*-3
n = -15
Answer:
7, 7, 11 are the three numbers.
Step-by-step explanation:
<u>Given:</u>
Mode of the three numbers = 7
Range of numbers i.e. difference between the smallest and the largest number is = 4
Value of highest number card 7
As per the definition of Mode:
Mode is the number that occurs the most number of times in the given set of numbers. In other words, mode is the number whose frequency is the highest in the given set of numbers.
Here, we have three numbers and <em>mode is 7 </em>that means 7 occurs <em>at least two times </em>in the three numbers.
Also, we are given that <em>7 is not highest number</em>, plus <em>4 is the range </em>that means <em>7 occurs exactly two times </em>out of three numbers.
So, <em>two numbers are 7 and 7</em>.
<em>7 is not highest and 4 is the range, so third number = 7+4 = 11</em>
<em></em>
So, <em>the numbers on the cards are 7, 7 and 11.</em>
8 + 24 / 2 X 6 - 4
following order of operations divide 24 by 2:
8 + 12 x 6 -4
Multiply 12 by 6:
8 + 72 -4
Add 8 and 72:
80-4
Subtract to get 76