- Rounding 789 nearest to tens will be 790.
Step-step Explanation:
Let's know how to round any number nearest to tens (Rules):-
We know tens place in any no. from left is at second place and number right to tens place need to be changed as:-
- If last digit is 0, then we don't have to do any rounding, because it is already to the ten.
- We round the no. down to the nearest ten if the last digit in the no. is 1, 2, 3, or 4
- We round the no. up to the nearest ten if the last digit in the no. is 5, 6, 7, 8, or 9.
The garden view hotel is 235 feet tall
Step-by-step explanation:
The given is:
- The garden view hotel is seventeen less than twice the height of the plaza hotel
- Their combined height is 361 feet
We need to find the height of the garden view hotel
Assume that the height of garden view hotel is x feet and the height of the plaza hotel is y feet
∵ The height of the garden view hotel = x feet
∵ The height of the plaza hotel = y feet
∵ The height of the garden view hotel is 17 less than twice the
height of the plaza hotel
- That means x is less than 2 × y by 17, equate x by the difference
of 2 × y and 17
∴ x = 2y - 17 ⇒ (1)
∵ Their combined height = 361 feet
∴ x + y = 361
- Find y in terms of x by subtraction x from both sides
∴ y = 361 - x ⇒ (2)
Substitute y in equation (1) by equation (2)
∵ x = 2(361 - x) - 17
- Simplify the right hand side
∴ x = 722 - 2x - 17
- Add like terms
∴ x = 705 - 2x
- Add 2x to both sides
∴ 3x = 705
- Divide both sides by 3
∴ x = 235
The garden view hotel is 235 feet tall
Learn more:
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Answer:
6x=13
Step-by-step explanation:
23-10=13 so 6x=13
Answer:
$452,340
Step-by-step explanation:
Fencing (perimeter):
255+255=450+450+450= 1860 feet
1860 / 3 = 620 yards
620 x $27 = $16,740
Seed (area):
Square area: a = lw
a = 450 x 450
a = 202500 feet
202500 x $2 = $405,000
Triangle area: a = 1/2bh
a = 1/2 x 255 x 120
a = 1/2 x 30600
a = 15300
15300 x $2 = $30,600
Add the cost of the fencing and seeds up.
$16,740 + $405,000 + $30,600 = $452,340
V = C(1 - (T/N)).......for C ....multiply both sides by N
NV = CN - CT
NV = C(N - T) ...divide both sides by (N-T)
NV / (N - T) = C
V = C(1 - (T/N))...for T ...multiply both sides by N
NV = CN - CT ....subtract CN from both sides
NV - CN = - CT....divide both sides by -C
(NV - CN) / -C = T or (CN - NV)/ C = T
