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jek_recluse [69]
3 years ago
12

As you can see, I already answered part A. That part is easy, like kindergarten level. But I don't remember learning how to do p

art B, so if someone could explain it I would be very grateful.

Mathematics
2 answers:
OleMash [197]3 years ago
4 0
10 and 6 hope this helped
drek231 [11]3 years ago
3 0

Answer:

Length: 10 units.

Width:6 units

Step-by-step explanation:

Part a has 1 unit =40 yards. When we have 1 unit = 20 yards, we have divided the original numbers, 40, in half, getting 20. That means that we need to double the original amount of units, like you see above.

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The product of the length of 2 unequal poles before cutting 2 cm from each was 285 cm. Their present sum after cutting 2cm from
labwork [276]

Answer:

15 cm

Step-by-step explanation:

The length of the shorter pole can be found by forming and subsequently solving 2 equations.

Start by defining the variables that are going to be used in the working.

Let the original length of the shorter pole be a cm and that of the longer pole be b cm.

'Product' refers to the multiplication operation.

ab= 285 -----(1)

On the other hand, 'sum' refers to the addition operation.

Length of shorter pole after cutting= a -2

Length of longer pole after cutting= b -2

(a -2) +(b-2)= 30

a +b -4= 30

Adding 4 to both sides:

a +b= 30 +4

a +b= 34 -----(2)

From (2):

a= 34 -b -----(3)

Let's solve by substitution:

Substitute (3) into (1):

b(34 -b)= 285

Expand:

34b -b²= 285

b² -34b +285= 0

Factorise:

(b -15)(b -19)= 0

b -15= 0       or       b -19= 0

b= 15            or             b= 19

Substitute into (1):

a(15)= 285       or       a(19)= 285

a= 285 ÷15      or             a= 285 ÷19

a= 19                or             a= 15

Since a <b, a= 15 and b= 19.

Thus, the length of the shorter pole is 15 cm.

8 0
2 years ago
( − 7 , 21 ) ( - 7 , 21 ) and is parallel to the line y = 1 7 x − 56 ? y = 1 7 x - 56 ?
Nutka1998 [239]

Answer:

9487593201-30498576

Step-by-step explanation:

3 0
3 years ago
What is 0.45 expressed as a decimal with a line over 5
antiseptic1488 [7]

Answer:

.45/5 converted to a decimal is 0.09

Step-by-step explanation:

I'm not sure what you mean by "with a line over 5" so I just thought u meant with 5 as the denominator

7 0
3 years ago
What are the coordinates of the vertices of the triangle under the translation (x, y) —&gt; (x + 2, y + 3)?
tamaranim1 [39]
For each vertex just take the x and y coordinate and apply the translation. so for the point (-3,-2) make them (-3+2, -2+3)=(-1,1) and do the same for the other two points (0,2) and (-7,3)
8 0
3 years ago
Read 2 more answers
Points j, k, and L are collinear
tatuchka [14]

Answer:

n=4

JK=12

KL=13

Step-by-step explanation:

Since JL=25 and JL=3n+5n-7

Then

3n+5n-7=25 simplifying we get

8n-7=25 subtracting 7 from both sides

8n=32 dividing both sides by 8

n=4

JK?

JK=3n bt n=4

JK=3*4

JK=12

KL?

KL=5n-7

KL=5*4-7

KL=13

6 0
3 years ago
Read 2 more answers
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