Error Analysis Nolan began with $35 in his

Mathematics

2 answers:

gayaneshka [121]3 years ago

6 0

Answer:

Hi buddy

Step-by-step explanation:

Nolan begin with $35 spending $5 each day

X number of days and Y bank account balance

X=0 we can know that through the condition Y= $35

when X=1 Y=35-5=30

From these 2 conditions we can get the line model of the amount of money in her account bank is Y= -5x + 35

<h2># continue learning #</h2>

<h2>pls mark me as the brainliest</h2>

Irina-Kira [14]3 years ago

5 0

Answer:15

Step-by-step explanation:

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Ms. Geronimo has a $10 gift certificate to her local bakery.

avanturin [10]

Answer: a) 13 macaroons

b) 6 cookies

Step-by-step explanation: Total = $10

a) $2.20/slice of pie

$0.60/macaroon

10 - 2.20 = 7.80

7.80/0.6 = 13

b) $4.60/loaf

cookies = 1 1/2*macaroons = (1 + 0.5)*0.6 = 1,5 * 0.6 = 0.90

cookies = $0.90

10 - 4.60 = 5.40

5.40/0.9 = 6

5 0

3 years ago

Please help me with this problem

My name is Ann [436]

Answer:

$6A- 8B = \left[\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right]$

Option A is correct.

Step-by-step explanation:

$A=\left[\begin{array}{ccc}-4&-1&-9\\-9&6&9\\-1&-1&3\end{array}\right] \\B=\left[\begin{array}{ccc}-10&-7&-5\\9&-7&-1\\9&-4&2\end{array}\right]$

We need to find 6A - 8B

Multiply matrix A with 6 and matrix B with 8 and then subtract 6A - 8B

$6A=\left[\begin{array}{ccc}-24&-6&-54\\-54&36&54\\-6&-6&18\end{array}\right] \\8B=\left[\begin{array}{ccc}-80&-56&-40\\72&-56&-8\\72&-32&16\end{array}\right]\\6A - 8B =\left[\begin{array}{ccc}-24-(-80)&-6-(-56)&-54-(-40)\\-54-(72)&36-(-56)&54-(-8)\\-6-(72)&-6-(-32)&18-(16)\end{array}\right] \\6A - 8B =\left[\begin{array}{ccc}-24+80&-6+56&-54+40\\-54-72&36+56&54+8\\-6-72&-6+32&18-16\end{array}\right] \\6A- 8B = \left[\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right]$