Ask question

Ask question

All categories

3 years ago

12

what in a equation to represent the relationship "a number decreased by negative 7 and is the same thing as 48

1 answer:

murzikaleks [220]3 years ago

6 0

I think it would be n-(-7)=48

You might be interested in

A student used four different tape measures to estimate the length of a meterstick manufactured to he exactly 1 meter. Which mea

Ksju [112]

Out of the four options,
A. 99 cm B. 105.98 cm C. 90 cm D. 104.5 cm,

option A is the correct answer.

Because 1 m = 100 cm and this is the nearest approximation. Thus, the<span>A student used A tape measures to estimate the length of a meterstick manufactured to he exactly 1 meter. </span>

6 0

3 years ago

A company that manufactures storage bins for grains made a drawing of a silo. The silo has a conical base, as shown below: The f

guapka [62]

Answer:

C. π(2ft)²(10ft) + 1/3π(2ft)²(13ft-10ft)

Step-by-step explanation:

Given:

diameter = 4ft

length of the cylindrical part = 10ft

entire length of the silo = 13ft

Find the volume of the silo = volume of cylinder and volume of the cone

Formulas:

Volume of cylinder: πr²h

Volume of come: 1/3πr²h

2ft= radius

height =10

volume π×2²×10

radius 2ft

height 13-10=3ft

Volume= 1/3×π×2²×3 cube feet

Therefore the third answer is correct: C. π(2ft)²(10ft) + 1/3π(2ft)²(13ft-10ft)

3 0

3 years ago

The temperature inside a certain industrial machine at time t seconds after startup, for 0 < t < 10, is given by h(t) = 42

frutty [35]

Answer:

$t= \frac{125}{38} s$

Step-by-step explanation:

We are given the temperature inside the machine from startup until 10 seconds later, the formula is:

$h(t)= 42 \cdot t +1 - 4\cdot t +2 (degrees \, C)$

We want to know at what time t the temperature inside the machine will be equal to 128 °C.

So we set:

$h(t)=128$

$42\cdot t+1-4\cdot t+2=128$

Now, we rearrange the equation to keep terms with t on the left hand side and terms without t on the right hand side

$42\cdot t-4\cdot t=128-1-2$

and we simplify:

$(42-4)\cdot t= 128-2-1= 125$

$38 \cdot t = 125$

now it's easy to solve for t:

$t=\frac{125}{38}$

And thus we arrive to the solution.

5 0

3 years ago

determine the height in inches of a triangle with an area of 107 square inches and a base of 35 inches.

inna [77]

Answer:

h=2 A/b

h=6.114

7 0

3 years ago

Keith's Catering charges a $100 setup fee and $25 per

Sunny_sXe [5.5K]

Xhdidhshsjjskskosodkbx

3 0

3 years ago

Read 2 more answers