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NeX [460]
3 years ago
13

After giving out 17 cards to 42 students, Mr.Todd had 23 cards left . how many cards did he have at first

Mathematics
1 answer:
Vikentia [17]3 years ago
4 0
He had 40 cards at first.
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A culture of 1.08×1015 bacteria is in petri dish A. A culture of 2.7×1011 bacteria is in petri dish B. How many times greater is
xxTIMURxx [149]
<span>Culture in petri dish A is 1.08 x 10^15 and culture in petri dish B is 2.7 X 10^11. To determine how much greater petri dish A is from petri dish b, you must divide petri dish A by petri dish b. When you divide the two numbers, the answer is 4,000. The number of bacteria in petri dish A is four thousand times greater than the number of bacteria in petri dish B.</span>
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3 years ago
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Select the correct answer from each drop-down menu.
ElenaW [278]

Answer:

  ·  This image may result from the construction of <em>an angle congruent to a given angle</em>.

  ·  The next step in this construction is to set the compass width to <em>arc JK and draw an arc centered at L intersecting the existing arc through L</em>.

Step-by-step explanation:

If the step shown above results in point of intersection P, and the construction is completed by drawing ray DP, then this construction produces triangle DLP congruent to triangle BKJ. The angle at D will be congruent to the angle at B because CPCTC. Hence an angle congruent to a given angle will have been constructed.

8 0
3 years ago
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The weight of the larger of two boxes is 2 lbs less than 5 times the weight of the smaller box. Their sum is
olganol [36]

Answer:

It's 74 Because 2 times 5 is 10plus 64 equals 74

5 0
3 years ago
Which is true for all pairs of values in this table? X1,2,3,4 y 0,-2,-4,-6
Mumz [18]
Given data:

X               Y
1                 0
2              - 2
3              - 4 
4              - 6

From the above table,
We have to see what sort of function is it showing.
Therefore,
Taking the first difference of the y-values.
We get,
-2 , -2 , -2

The first difference is constant for all the y-values, that is -2. Therefore it is a linear function,
So,
using the general form,
                                         y = mx + b
where m represent the slope and b represents the y-intercept.

Now,
We will use two coordinate points to find out the slope,

Let them be: (1,0) and (2,-2)
So,
m = 2 / -1
m = -2

Now the y-intercept,

As we know that,
                             y = -2x + b

Take any point from the table, let it be (1,0)

substituting it into the equation, we get;
                                                                    0 = -2(1) + b
                                                                    b = 2

Hence our equation is:
                                       y = - 2x + 2   
3 0
3 years ago
A runner ran 1 4/5 miles on Monday and 6 3/10 on Tuesday. How many times her Monday's distance was her Tuesday's distance? Pleas
Tamiku [17]
He ran more than enough that’s all extra talk
8 0
3 years ago
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