All categories

2 years ago

Translate the sentence into an equation.

Mathematics

1 answer:

Andreas93 [3]2 years ago

3 0

Question:

Twice the difference of a number and 5 is equal to 9 .

Answer:

$2x - 5 = 9$

Step-by-step explanation:

Required

Translate

Let the number be x

Twice the number, x is $2x$

The difference between (above) and 5 is $2x - 5$

This equals to 9.

So, the expression becomes

$2x - 5 = 9$

Solving further:

$2x = 5 + 9$

$2x = 14$

Divide through by 2

$x = 7$

<em>Hence, the number is 7</em>

You might be interested in

If 4 cooks can prepare a buffet in 15 mins how long would it take 6 cooks

mixas84 [53]

Answer:

it will probably take the same amount of time since they are cooking the same amount and the food doesn't take any less to cook if there's more people but they could tidy and bring the food out faster but the time to cook the food will remain the same.

5 0

2 years ago

Enter an inequality that represents the graph in the box.

mamaluj [8]

We know the y intercept is -6 and we know the slope is positive 4 (rise over run) so the equation is y=4x-6 if we plug in a shaded point (I would choose 0,0 for convenience reasons) 0=-6 since -6 is less than 0, the expression would be y≥4x-6

4 0

2 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

Afina-wow [57]

Answer:

$\large \boxed{\textbf{30.54 yr}}$

Step-by-step explanation:

For species A,

$P =2000e^{0.05t}$

For species B,

$P =5000e^{0.02t}$

When their populations are equal,

$\begin{array}{rcl}2000e^{0.05t} & = & 5000e^{0.02t}\\e^{0.05t} & = & 2.5e^{0.02t}\\0.05t & = & \ln2.5 + 0.02t\\0.05t & = & 0.9163 + 0.02t\\0.03t & = & 0.9163\\t& = & \dfrac{0.9163}{0.03}\\\\& = & \mathbf{30.54}\\\end{array}\\\text{The populations of species A and B will be the same in $\large \boxed{\textbf{30.54 yr}}$}$

The diagram below shows the population of Species A overtaking that of Species B in about 30.5 yr.

3 0

3 years ago

Pls help me figure this out

hodyreva [135]

Answer:

C. $\frac{27}{225}=\frac{b}{100}$

Step-by-step explanation:

To find the number of black ribbons one would have subtract the amount of red ribbons from the total number of ribbons. Then one would have to express it as a proportion. Part over whole equals percent over 100. The number of black ribbons over total ribbons equals "b" over 100.

8 0

2 years ago

Jason needs to explain to his class how to use mental math to find the product of 400,000×50,000 how would u explain that

elena55 [62]

You would do 5 times 4 which is 20. then count how many zero's there are and put them after the 20.

4 0

3 years ago