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frozen [14]
3 years ago
12

Solve the system of linear equations by graphing. 2x + 3y = 16.9 5x = y + 7.4

Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

the intersecting point of the two lines is (2.2999999,4.1)

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Plz help me with this asap​
kaheart [24]
The first one is x= 40
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2 years ago
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Dishwasher detergent is sold in individual packets. The 20 packet box sells for $5.49. The 60 packet box sells for $10.97. The 9
poizon [28]

Answer:

60 packets

Step-by-step explanation:

Given that :

Unit cost of 20 packets

$5.49 / 20 =$0.2745

Unit cost of 60 packets :

$10.97 / 60 = $0.1828333

Unit cost of 90 packets :

$18.95 / 90 = $0.2105555

The 60 packets has the least cost per unit, hence it is the best buy.

5 0
3 years ago
Suppose you have a total of $2.25 in dimes and nickels and you have twice as many dimes as nickels. How much of each coin do I h
andreyandreev [35.5K]

Answer:

12 dimes and 21 nickles  

Step-by-step explanation:

4 0
2 years ago
Prove: The square of a number that is
Nikolay [14]

Let 3<em>n</em> + 1 denote the "number" in question. The claim is that

(3<em>n</em> + 1)² = 3<em>m</em> + 1

for some integer <em>m</em>.

Now,

(3<em>n</em> + 1)² = (3<em>n</em>)² + 2 (3<em>n</em>) + 1²

… = 9<em>n</em>² + 6<em>n</em> + 1

… = 3<em>n</em> (3<em>n</em> + 2) + 1

… = 3<em>m</em> + 1

where we take <em>m</em> = <em>n</em> (3<em>n</em> + 2).

3 0
2 years ago
Can you help me find the answer? i cant do it and i will get j<br>​
Tanya [424]

Answer:

a. 10

b. -4

Step-by-step explanation:

For these problems, since we are given the x, we plug it into the expression and solve.

a.

3(4)-2                  [multiply]

12-2                     [subtract]

10

-------------------------------------------------------------------------------------------------------

b.

5(-2)+6                [multiply]

-10+6                   [subtract]

-4

3 0
3 years ago
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