We can solve this question by unitary method.
The unitary method is a method of finding the value of one unit and then finding the value of the required number of units. While solving a problem it is important to recognize the units and values.

In this question, 10 tacos cost $105.
Let's represent the cost of 1 taco as $x$
10 tacos =$ 105
1 taco = $x$
10 $x$ = 105
$x$ = $\frac{105}{10}$

$x$ = 10.5
Each taco cost $10,5
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7 0

2 years ago

if a toy rocket is launced vertically upward from ground level with an inital velocity of 128 feet per second, then its high h,

makkiz [27]

The toy rocket hits the ground when h(t) = 0.
So, h(t) = 0 = -9t^2 + 81.

Solving the equation,
-9t^2 = -81
Dividing by -9
t^2 = 9
Taking the square root.
t = 3

The answer is 3 seconds.

7 0

3 years ago

Solve the following equation and verify the results<br>4(2x-3)+5(3x-4)=16

Licemer1 [7]

Answer:

I got x=48/23 or 2 2/23

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Translate this sentence into an equation.

kakasveta [241]

Answer:

21+j=55

Step-by-step explanation:

It says sum, which means to add(+). So you add 21 and j (21+j) and that equals 55 (=55). Then you add all the pieces together and you get 21+j=55

7 0

3 years ago