All categories

3 years ago

The sum of twice a number and 10 is 36

2 answers:

5 0

First you set up an equation like so:
2x + 10 = 36

Bring the 10 over

2x + 10 = 36
- 10
2x = 26
__ __

2 2

26 /2

x = 13

Leya [2.2K]3 years ago

3 0

Answer: The required number is 13.

Step-by-step explanation: Given that the sum of twice a number and 10 is 36.

We are to find the number.

Let x represents the required number.

Then, according to the given information, we have

$2\times x+10=36\\\\\Rightarrow 2x+10=36\\\\\Rightarrow 2x=36-10\\\\\Rightarrow 2x=26\\\\\Rightarrow x=\dfrac{26}{2}\\\\\Rightarrow x=13.$

Thus, the required number is 13.

You might be interested in

Let Upper A equals left bracket Start 2 By 2 Matrix 1st Row 1st Column negative 2 2nd Column 4 2nd Row 1st Column 1 2nd Column 3

Anastaziya [24]

Answer:

See explanation

Step-by-step explanation:

Given:

$A=\left[\begin{array}{cc}-2&4\\1&3\end{array}\right]$

$B=\left[\begin{array}{cc}-2&1\\3&7\end{array}\right]$

A. Find AB:

$AB=\left[\begin{array}{cc}-2&4\\1&3\end{array}\right]\cdot \left[\begin{array}{cc}-2&1\\3&7\end{array}\right]=\left[\begin{array}{cc}-2\cdot (-2)+4\cdot 3&-2\cdot 1+4\cdot 7\\1\cdot (-2)+3\cdot 3&1\cdot 1+3\cdot 7\end{array}\right]=\left[\begin{array}{cc}16&26\\7&22\end{array}\right]$

B. Find BA:

$BA=\left[\begin{array}{cc}-2&1\\3&7\end{array}\right]\cdot \left[\begin{array}{cc}-2&4\\1&3\end{array}\right]=\left[\begin{array}{cc}-2\cdot (-2)+1\cdot 1&-2\cdot 4+1\cdot 3\\3\cdot (-2)+7\cdot 1&3\cdot 4+7\cdot 3\end{array}\right]=\left[\begin{array}{cc}5&-5\\1&33\end{array}\right]$

C. Answers are not the same

D. Matrices multiplication is not commutastive in general, so

$AB\neq BA$

7 0

3 years ago

The distance from first base to third base is 1.4times the distance from home plate to third base, which is k feet. REPRESENT TH

geniusboy [140]

Answer:

1.4 times k

Step-by-step explanation:

If k feet is the distance from home plate to third base, and the distance from first base to third base is 1.4 times the previous value, then

distance from first base to third base = 1.4 * k or 1.4 times k

If, for example, k=90 feet, then from first to third base there are

1.4*90=126 feet

4 0

3 years ago

Help please I'm stuck once again?

Llana [10]

Answer:

The probe's final position is -143m

Step-by-step explanation:

Note that the words 'lowered' and 'below' mean subtract; while the word 'raised' means add. Thus, interpreting the statement to mathematical expression is done below.

$- 90m + 50m - 138m + 35m$