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olga_2 [115]
4 years ago
7

Write a story that would use the following equation 12r = 156 to satisfy the story.

Mathematics
2 answers:
kompoz [17]4 years ago
5 0
Melina bought 12 rings for a total of $156. Create an equation that helps you to solve for the price for one ring. Let r equal the price per ring.
Eddi Din [679]4 years ago
4 0
12r=156

Answer r=13

it will help you
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Pierre wants to make tables and chairs. He has a total of 220220 wooden boards and 760760 nails. 13 T+8 C \leq 22013T+8C≤220 rep
Virty [35]

Solution:

Number of wooden boards that Pierre possess= 220

Number of nails that Pierre have= 760

The two expression which represents the number of tables T and chairs C he can make with 220 wooden boards and 760 nails

1. 13 T+8 C≤220

2. 48 T+37 C≤760

We can solve it by two methods, either graphically or by finding their point of intersections,as these two are inequalities in two variable

Equation (1) × 37 - Equation (2) × 8

481 T + 296 C-384 T -296 C≤8140 - 6080

97 T ≤ 2060

T ≤ 21.23(approx)

Putting the value of T in equation (1),

13 × 21.23 + 8 C ≤ 220

347.80 + 8 C≤220

8 C ≤ 220 - 347.80

8 C≤-127.80

As, the value of Chairs (C) can't be negative.

So, the two inequalities which represents number of chairs and number of tables is incorrect.

So, we can't find total number of chairs and total number of tables with the given inequalities.

5 0
4 years ago
2. A sculptor is planning to make two triangular prisms out of steel. The sculptor will use ΔABC for the bases of one prism and
Phoenix [80]

Answer:

a) SAS

b) Volume of DEF is 4 times the Volume of ABC

Step-by-step explanation:

a) since they have one same/congruent angle (angle B and angle E) and other two sides are in the same ratio, they are similar by SAS similarity theorem.

40/20 = 30/15 = 2

Therefore Δ ABC is similar to Δ DEF

b) Volume of a prism

= base area × height

Let height be 'h cm'

With Base ABC:

Volume = ½×20×15×h = 150h cm³

With Base DEF:

Volume = ½×40×30×h = 600h cm³

600h/150h = 4

Prism with base DEF has a greater volume; it's 4 times of the volume of the prism with base ABC

7 0
4 years ago
What is the value of x in this triangle?
andreyandreev [35.5K]
The answer is 14.0362 rounded is 14.04
7 0
3 years ago
Find the sum:
ruslelena [56]

Answer:

dd

Step-by-step explanation:

8 0
3 years ago
the law of contrapositives states that if a conditional statement is true, then its contrapositive must be ____________.
Gennadij [26K]
Functionally equivalent. Their<span> truth tables are the same.</span>
4 0
4 years ago
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