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In-s [12.5K]
3 years ago
15

Mr Martin has 36 calculators in a box. The ratio of ordinary calculators to scientific is 5:1. How many of each calculator does

he have?
Mathematics
1 answer:
viva [34]3 years ago
5 0
30 ordinary and 6 scientific
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PLS HELP !!
Oliga [24]
For this case we have that the weight of the bouquet of flowers will be:
 4.3 * 10 ^ 4 - 2 * (7.5 * 10 ^ 2)
 Rewriting we have:
 4.1 * 10 ^ 4 miligrams
 Thus, we have that the values of p and q are given by:
 p = 4.1
 q = 4
 Answer:
 
4.1 * 10 ^ 4 miligrams
 
p = 4.1
 
q = 4
8 0
3 years ago
Read 2 more answers
Y varies directly with x. If y=25 when x=5, find y when x =-4<br><br>y =​
alina1380 [7]

Answer:

y = -20

Step-by-step explanation:

Given that y varies directly with x it means changing x will also cause change in y

Mathematically it can be written as:

y∝x

Removing the proportionality symbol

y = kx

Given y=25 when x=5 Putting the values

25 = k(5)\\k = \frac{25}{5}\\k = 5

Now

y = 5x

We have to find the value of y when x = -4

Putting x=-4

y = 5(-4)\\y = -20

Hence,,

y = -20

7 0
2 years ago
An assembly line has two inspectors. The probability that the first inspector will miss a defective item is 0.06. If the defecti
Novay_Z [31]

Answer:

probability that both passes a defective item is  0.8742‬

<h3>Step-by-step explanation:</h3>

probability that the first inspector misses is Pr( 1st misses)= 0.06

therefore the probability he does not miss is

Pr(1st passes)= 1 - Pr( 1st misses) = 1 - 0.06 = 0.94

probability that the second misses is Pr( 2nd misses) = 0.07

therefore probability that 2nd does not miss is

Pr( 2nd passes) = 1- Pr( 2nd misses) = 0.93

probability that both passes a defective item is  Pr(1st passes)*Pr( 2nd passes)

= 0.93*0.94 = 0.8742‬

7 0
3 years ago
If f(x) = -x2 + 6x, what is f(-3)?
Sever21 [200]

Answer:

-12

Step-by-step explanation:

f(-3)= -(-3)2 + 6(-3)

= -(-6) -18

= 6 - 18

= - 12

8 0
3 years ago
What is the greatest common factor of 48 and 84? A.8 B.12 C.4 D.24
LiRa [457]
48 = 2*2*2*2*3
84 = 2*2*3*7

Looking for common factors we get the GCF to be 2*2*3 = 12

Its B
7 0
3 years ago
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