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Ivenika [448]
3 years ago
12

4x + 3y = -21 Help Me

Mathematics
1 answer:
Anni [7]3 years ago
3 0
It’s simply go to quizlet and it’ll give you the answers
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the running back for the Eagles football team carried the ball 17 times for a total loss of 85 yards find the average change in
Alex
85÷17=5

the average change in field position on each run is 5 yards
4 0
3 years ago
You buy 30 of your favorite songs from a Web site that charges ​$0.98 for each song. What is the cost of 30 ​songs? Use mental m
zubka84 [21]

If you are going to use mental math, round $0.98 up to $1.

Rounded, the cost of the 30 songs is $30.

However, since you rounded at the beginning, you need to subtract 2 cents for every song you purchased from the total of $30.

Multiply 30 by $0.02 to get $0.60. Subtract $0.60 from $30.

Your answer should be $29.40.

6 0
3 years ago
Read 2 more answers
Jill has 60 ribbons. Half of them are red. The rest are blue and black. There are 4 more blue ribbons than black ribbons. how ma
Molodets [167]

Answer:

11

Step-by-step explanation:


3 0
3 years ago
The cost of four scarfs and six hats is $52. The cost of two hats is $1 more than the cost of one scarf. What are the costs of o
timurjin [86]
Four scarves and six hats is $52.00 
<span>4s+6h=52 </span>

<span>two hats is $1.00 more than the cost of one scarf. </span>
<span>2h=1s+1 </span>
<span>2h=s+1 </span>
<span>s=2h-1 </span>

<span>substitute for s </span>
<span>4s+6h=52 </span>
<span>4(2h-1)+6h=52 </span>
<span>8h-4+6h=52 </span>
<span>14h=56 </span>
<span>h=4 </span>

<span>s=2h-1 </span>
<span>s=8-1 </span>
<span>s=7 </span>

<span>a scarf cost $7 </span>
<span>a hat cost $4</span>
8 0
3 years ago
Read 2 more answers
Find the number of distinct triangles with the measurements a = 5, b =2, and a = 51 degrees.
elixir [45]
The answer is the option b. 1.

Two sides and one angle determine one unique triangle.

If the angle is the between the two sides, you just can use the rule known as SAS, Side Angle Side.

When that is the case you use the cosine rule.

When the known angle is not between the two sides but one of the others, you use sine theorem.

Then in any case when you know two sides and one angle of a triangle the other side and angles are determined, which implies that there is only one possible triangle.
4 0
3 years ago
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